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<header> <nav aria-label="Breadcrumb"> <p><a href="/Sandboxes/johnnyphung/chem65/02:_Homework/HW_04#">Chemistry 65: Preparatory Chemistry</a> > <a href="/Sandboxes/johnnyphung/chem65/02:_Homework/HW_04#">Homework</a></p> </nav> <h1>HW 04</h1> </header> <main role="main"> <div id="preview" class="preview scrollEditor"> <div id="container-ruller"></div> <div id="preview-content"> <h2 type="section" data-unnumbered="true" id="review-questions" class="section-title"> REVIEW QUESTIONS</h2> <h2 type="section" data-unnumbered="true" id="chapter-4" class="section-title"> Chapter 4</h2> <ol> <li>Complete each question below with an appropriate term:<br /> a) <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span> Un-reactive elements in the last group of the periodic table.<br /> b) <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span> Elements in group 2 of the periodic table.<br /> c) <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span> Elements between the main group elements.<br /> d) <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span> Elements in group 7 of the periodic table.</li> <li>Name and write symbol for each element described below:<br /> a) Alkali metal in period 4: <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span><br /> b) Halogen in period 2: <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span><br /> c) Alkaline-earth metal in period 3: <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span><br /> d) Metalloid in period 3: <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span><br /> e) Noble gas in period 5: <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span></li> <li>Complete each statement below with a suitable word or phrase:<br /> A) The "soccer ball" model of the atom is attributed to <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span><br /> B) Thomson discovered the <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span> in 1897.<br /> C) Rutherford discovered that the atom was mostly hollow through the<br /> <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span> experiment.<br /> D) The number of protons in an atom is called the <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span><br /> E) Isotopes of an atom have the same <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span> but different<br /> <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span><br /> F) The group number of representative elements represents the <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span></li> <li>For each element below, use the information given to determine the number of protons, neutrons and electrons in its atom, and write shorthand notation for each.<br /> a) Krpton (Kr) atomic number (Z=36); mass number (A=84)</li> </ol> <div><span class="math-block "> <mjx-container class="MathJax" jax="SVG" display="true"><svg style="vertical-align: -0.439ex;" width="20.321ex" height="2.439ex" role="img" focusable="false" viewbox="0 -883.9 8981.7 1077.9"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="msup"><g data-mml-node="TeXAtom" data-mjx-texclass="ORD"><g data-mml-node="mi"><path data-c="70" d="M36 -148H50Q89 -148 97 -134V-126Q97 -119 97 -107T97 -77T98 -38T98 6T98 55T98 106Q98 140 98 177T98 243T98 296T97 335T97 351Q94 370 83 376T38 385H20V408Q20 431 22 431L32 432Q42 433 61 434T98 436Q115 437 135 438T165 441T176 442H179V416L180 390L188 397Q247 441 326 441Q407 441 464 377T522 216Q522 115 457 52T310 -11Q242 -11 190 33L182 40V-45V-101Q182 -128 184 -134T195 -145Q216 -148 244 -148H260V-194H252L228 -193Q205 -192 178 -192T140 -191Q37 -191 28 -194H20V-148H36ZM424 218Q424 292 390 347T305 402Q234 402 182 337V98Q222 26 294 26Q345 26 384 80T424 218Z"></path></g></g><g data-mml-node="TeXAtom" transform="translate(589,413) scale(0.707)" data-mjx-texclass="ORD"><g data-mml-node="mo"><path data-c="2B" d="M56 237T56 250T70 270H369V420L370 570Q380 583 389 583Q402 583 409 568V270H707Q722 262 722 250T707 230H409V-68Q401 -82 391 -82H389H387Q375 -82 369 -68V230H70Q56 237 56 250Z"></path></g></g></g><g data-mml-node="mo" transform="translate(1466.9,0)"><path data-c="3D" d="M56 347Q56 360 70 367H707Q722 359 722 347Q722 336 708 328L390 327H72Q56 332 56 347ZM56 153Q56 168 72 173H708Q722 163 722 153Q722 140 707 133H70Q56 140 56 153Z"></path></g><g data-mml-node="mstyle" transform="translate(2244.9,0)"><g data-mml-node="mspace"></g></g><g data-mml-node="msup" transform="translate(3522.7,0)"><g data-mml-node="TeXAtom" data-mjx-texclass="ORD"><g data-mml-node="mi"><path data-c="6E" d="M41 46H55Q94 46 102 60V68Q102 77 102 91T102 122T103 161T103 203Q103 234 103 269T102 328V351Q99 370 88 376T43 385H25V408Q25 431 27 431L37 432Q47 433 65 434T102 436Q119 437 138 438T167 441T178 442H181V402Q181 364 182 364T187 369T199 384T218 402T247 421T285 437Q305 442 336 442Q450 438 463 329Q464 322 464 190V104Q464 66 466 59T477 49Q498 46 526 46H542V0H534L510 1Q487 2 460 2T422 3Q319 3 310 0H302V46H318Q379 46 379 62Q380 64 380 200Q379 335 378 343Q372 371 358 385T334 402T308 404Q263 404 229 370Q202 343 195 315T187 232V168V108Q187 78 188 68T191 55T200 49Q221 46 249 46H265V0H257L234 1Q210 2 183 2T145 3Q42 3 33 0H25V46H41Z"></path></g></g><g data-mml-node="TeXAtom" transform="translate(589,413) scale(0.707)" data-mjx-texclass="ORD"><g data-mml-node="mn"><path data-c="30" d="M96 585Q152 666 249 666Q297 666 345 640T423 548Q460 465 460 320Q460 165 417 83Q397 41 362 16T301 -15T250 -22Q224 -22 198 -16T137 16T82 83Q39 165 39 320Q39 494 96 585ZM321 597Q291 629 250 629Q208 629 178 597Q153 571 145 525T137 333Q137 175 145 125T181 46Q209 16 250 16Q290 16 318 46Q347 76 354 130T362 333Q362 478 354 524T321 597Z"></path></g></g></g><g data-mml-node="mo" transform="translate(4793,0)"><path data-c="3D" d="M56 347Q56 360 70 367H707Q722 359 722 347Q722 336 708 328L390 327H72Q56 332 56 347ZM56 153Q56 168 72 173H708Q722 163 722 153Q722 140 707 133H70Q56 140 56 153Z"></path></g><g data-mml-node="mstyle" transform="translate(5571,0)"><g data-mml-node="mspace"></g></g><g data-mml-node="msup" transform="translate(6848.8,0)"><g data-mml-node="TeXAtom" data-mjx-texclass="ORD"><g data-mml-node="mi"><path data-c="65" d="M28 218Q28 273 48 318T98 391T163 433T229 448Q282 448 320 430T378 380T406 316T415 245Q415 238 408 231H126V216Q126 68 226 36Q246 30 270 30Q312 30 342 62Q359 79 369 104L379 128Q382 131 395 131H398Q415 131 415 121Q415 117 412 108Q393 53 349 21T250 -11Q155 -11 92 58T28 218ZM333 275Q322 403 238 411H236Q228 411 220 410T195 402T166 381T143 340T127 274V267H333V275Z"></path></g></g><g data-mml-node="TeXAtom" transform="translate(477,413) scale(0.707)" data-mjx-texclass="ORD"><g data-mml-node="mo"><path data-c="2212" d="M84 237T84 250T98 270H679Q694 262 694 250T679 230H98Q84 237 84 250Z"></path></g></g></g><g data-mml-node="mo" transform="translate(8203.7,0)"><path data-c="3D" d="M56 347Q56 360 70 367H707Q722 359 722 347Q722 336 708 328L390 327H72Q56 332 56 347ZM56 153Q56 168 72 173H708Q722 163 722 153Q722 140 707 133H70Q56 140 56 153Z"></path></g></g></g></svg></mjx-container></span></div> <div>Notation: <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span><br /> b) Barium (Ba) atomic number ( <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.186ex;" width="6.662ex" height="1.731ex" role="img" focusable="false" viewbox="0 -683 2944.6 765"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="TeXAtom" data-mjx-texclass="ORD"><g data-mml-node="mi"><path data-c="5A" d="M69 443Q69 452 74 554T80 683H549Q555 677 555 664Q555 649 554 648Q552 645 366 348T179 50T192 49T263 49H275H302Q333 49 353 50T401 59T447 78T482 115T507 173Q513 200 520 273V282H560V274Q560 272 552 143T543 8V0H302L61 1L58 3Q55 8 55 21V35Q59 43 153 193T340 489T432 637H343Q259 637 214 625T141 573Q109 523 109 445Q109 443 89 443H69Z"></path></g></g><g data-mml-node="mo" transform="translate(888.8,0)"><path data-c="3D" d="M56 347Q56 360 70 367H707Q722 359 722 347Q722 336 708 328L390 327H72Q56 332 56 347ZM56 153Q56 168 72 173H708Q722 163 722 153Q722 140 707 133H70Q56 140 56 153Z"></path></g><g data-mml-node="mn" transform="translate(1944.6,0)"><path data-c="35" d="M164 157Q164 133 148 117T109 101H102Q148 22 224 22Q294 22 326 82Q345 115 345 210Q345 313 318 349Q292 382 260 382H254Q176 382 136 314Q132 307 129 306T114 304Q97 304 95 310Q93 314 93 485V614Q93 664 98 664Q100 666 102 666Q103 666 123 658T178 642T253 634Q324 634 389 662Q397 666 402 666Q410 666 410 648V635Q328 538 205 538Q174 538 149 544L139 546V374Q158 388 169 396T205 412T256 420Q337 420 393 355T449 201Q449 109 385 44T229 -22Q148 -22 99 32T50 154Q50 178 61 192T84 210T107 214Q132 214 148 197T164 157Z"></path><path data-c="36" d="M42 313Q42 476 123 571T303 666Q372 666 402 630T432 550Q432 525 418 510T379 495Q356 495 341 509T326 548Q326 592 373 601Q351 623 311 626Q240 626 194 566Q147 500 147 364L148 360Q153 366 156 373Q197 433 263 433H267Q313 433 348 414Q372 400 396 374T435 317Q456 268 456 210V192Q456 169 451 149Q440 90 387 34T253 -22Q225 -22 199 -14T143 16T92 75T56 172T42 313ZM257 397Q227 397 205 380T171 335T154 278T148 216Q148 133 160 97T198 39Q222 21 251 21Q302 21 329 59Q342 77 347 104T352 209Q352 289 347 316T329 361Q302 397 257 397Z" transform="translate(500,0)"></path></g></g></g></svg></mjx-container></span> ); mass number ( <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.186ex;" width="8.108ex" height="1.805ex" role="img" focusable="false" viewbox="0 -716 3583.6 798"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="TeXAtom" data-mjx-texclass="ORD"><g data-mml-node="mi"><path data-c="41" d="M255 0Q240 3 140 3Q48 3 39 0H32V46H47Q119 49 139 88Q140 91 192 245T295 553T348 708Q351 716 366 716H376Q396 715 400 709Q402 707 508 390L617 67Q624 54 636 51T687 46H717V0H708Q699 3 581 3Q458 3 437 0H427V46H440Q510 46 510 64Q510 66 486 138L462 209H229L209 150Q189 91 189 85Q189 72 209 59T259 46H264V0H255ZM447 255L345 557L244 256Q244 255 345 255H447Z"></path></g></g><g data-mml-node="mo" transform="translate(1027.8,0)"><path data-c="3D" d="M56 347Q56 360 70 367H707Q722 359 722 347Q722 336 708 328L390 327H72Q56 332 56 347ZM56 153Q56 168 72 173H708Q722 163 722 153Q722 140 707 133H70Q56 140 56 153Z"></path></g><g data-mml-node="mn" transform="translate(2083.6,0)"><path data-c="31" d="M213 578L200 573Q186 568 160 563T102 556H83V602H102Q149 604 189 617T245 641T273 663Q275 666 285 666Q294 666 302 660V361L303 61Q310 54 315 52T339 48T401 46H427V0H416Q395 3 257 3Q121 3 100 0H88V46H114Q136 46 152 46T177 47T193 50T201 52T207 57T213 61V578Z"></path><path data-c="33" d="M127 463Q100 463 85 480T69 524Q69 579 117 622T233 665Q268 665 277 664Q351 652 390 611T430 522Q430 470 396 421T302 350L299 348Q299 347 308 345T337 336T375 315Q457 262 457 175Q457 96 395 37T238 -22Q158 -22 100 21T42 130Q42 158 60 175T105 193Q133 193 151 175T169 130Q169 119 166 110T159 94T148 82T136 74T126 70T118 67L114 66Q165 21 238 21Q293 21 321 74Q338 107 338 175V195Q338 290 274 322Q259 328 213 329L171 330L168 332Q166 335 166 348Q166 366 174 366Q202 366 232 371Q266 376 294 413T322 525V533Q322 590 287 612Q265 626 240 626Q208 626 181 615T143 592T132 580H135Q138 579 143 578T153 573T165 566T175 555T183 540T186 520Q186 498 172 481T127 463Z" transform="translate(500,0)"></path><path data-c="37" d="M55 458Q56 460 72 567L88 674Q88 676 108 676H128V672Q128 662 143 655T195 646T364 644H485V605L417 512Q408 500 387 472T360 435T339 403T319 367T305 330T292 284T284 230T278 162T275 80Q275 66 275 52T274 28V19Q270 2 255 -10T221 -22Q210 -22 200 -19T179 0T168 40Q168 198 265 368Q285 400 349 489L395 552H302Q128 552 119 546Q113 543 108 522T98 479L95 458V455H55V458Z" transform="translate(1000,0)"></path></g></g></g></svg></mjx-container></span> )<br /> <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.439ex;" width="5.079ex" height="2.193ex" role="img" focusable="false" viewbox="0 -775.2 2244.9 969.2"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="msup"><g data-mml-node="TeXAtom" data-mjx-texclass="ORD"><g data-mml-node="mi"><path data-c="70" d="M36 -148H50Q89 -148 97 -134V-126Q97 -119 97 -107T97 -77T98 -38T98 6T98 55T98 106Q98 140 98 177T98 243T98 296T97 335T97 351Q94 370 83 376T38 385H20V408Q20 431 22 431L32 432Q42 433 61 434T98 436Q115 437 135 438T165 441T176 442H179V416L180 390L188 397Q247 441 326 441Q407 441 464 377T522 216Q522 115 457 52T310 -11Q242 -11 190 33L182 40V-45V-101Q182 -128 184 -134T195 -145Q216 -148 244 -148H260V-194H252L228 -193Q205 -192 178 -192T140 -191Q37 -191 28 -194H20V-148H36ZM424 218Q424 292 390 347T305 402Q234 402 182 337V98Q222 26 294 26Q345 26 384 80T424 218Z"></path></g></g><g data-mml-node="TeXAtom" transform="translate(589,363) scale(0.707)" data-mjx-texclass="ORD"><g data-mml-node="mo"><path data-c="2B" d="M56 237T56 250T70 270H369V420L370 570Q380 583 389 583Q402 583 409 568V270H707Q722 262 722 250T707 230H409V-68Q401 -82 391 -82H389H387Q375 -82 369 -68V230H70Q56 237 56 250Z"></path></g></g></g><g data-mml-node="mo" transform="translate(1466.9,0)"><path data-c="3D" d="M56 347Q56 360 70 367H707Q722 359 722 347Q722 336 708 328L390 327H72Q56 332 56 347ZM56 153Q56 168 72 173H708Q722 163 722 153Q722 140 707 133H70Q56 140 56 153Z"></path></g></g></g></svg></mjx-container></span> <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span> <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.186ex;" width="4.634ex" height="2.072ex" role="img" focusable="false" viewbox="0 -833.9 2048.3 915.9"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="msup"><g data-mml-node="TeXAtom" data-mjx-texclass="ORD"><g data-mml-node="mi"><path data-c="6E" d="M41 46H55Q94 46 102 60V68Q102 77 102 91T102 122T103 161T103 203Q103 234 103 269T102 328V351Q99 370 88 376T43 385H25V408Q25 431 27 431L37 432Q47 433 65 434T102 436Q119 437 138 438T167 441T178 442H181V402Q181 364 182 364T187 369T199 384T218 402T247 421T285 437Q305 442 336 442Q450 438 463 329Q464 322 464 190V104Q464 66 466 59T477 49Q498 46 526 46H542V0H534L510 1Q487 2 460 2T422 3Q319 3 310 0H302V46H318Q379 46 379 62Q380 64 380 200Q379 335 378 343Q372 371 358 385T334 402T308 404Q263 404 229 370Q202 343 195 315T187 232V168V108Q187 78 188 68T191 55T200 49Q221 46 249 46H265V0H257L234 1Q210 2 183 2T145 3Q42 3 33 0H25V46H41Z"></path></g></g><g data-mml-node="TeXAtom" transform="translate(589,363) scale(0.707)" data-mjx-texclass="ORD"><g data-mml-node="mn"><path data-c="30" d="M96 585Q152 666 249 666Q297 666 345 640T423 548Q460 465 460 320Q460 165 417 83Q397 41 362 16T301 -15T250 -22Q224 -22 198 -16T137 16T82 83Q39 165 39 320Q39 494 96 585ZM321 597Q291 629 250 629Q208 629 178 597Q153 571 145 525T137 333Q137 175 145 125T181 46Q209 16 250 16Q290 16 318 46Q347 76 354 130T362 333Q362 478 354 524T321 597Z"></path></g></g></g><g data-mml-node="mo" transform="translate(1270.3,0)"><path data-c="3D" d="M56 347Q56 360 70 367H707Q722 359 722 347Q722 336 708 328L390 327H72Q56 332 56 347ZM56 153Q56 168 72 173H708Q722 163 722 153Q722 140 707 133H70Q56 140 56 153Z"></path></g></g></g></svg></mjx-container></span> <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span> <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.186ex;" width="4.826ex" height="1.939ex" role="img" focusable="false" viewbox="0 -775.2 2132.9 857.2"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="msup"><g data-mml-node="TeXAtom" data-mjx-texclass="ORD"><g data-mml-node="mi"><path data-c="65" d="M28 218Q28 273 48 318T98 391T163 433T229 448Q282 448 320 430T378 380T406 316T415 245Q415 238 408 231H126V216Q126 68 226 36Q246 30 270 30Q312 30 342 62Q359 79 369 104L379 128Q382 131 395 131H398Q415 131 415 121Q415 117 412 108Q393 53 349 21T250 -11Q155 -11 92 58T28 218ZM333 275Q322 403 238 411H236Q228 411 220 410T195 402T166 381T143 340T127 274V267H333V275Z"></path></g></g><g data-mml-node="TeXAtom" transform="translate(477,363) scale(0.707)" data-mjx-texclass="ORD"><g data-mml-node="mo"><path data-c="2212" d="M84 237T84 250T98 270H679Q694 262 694 250T679 230H98Q84 237 84 250Z"></path></g></g></g><g data-mml-node="mo" transform="translate(1354.9,0)"><path data-c="3D" d="M56 347Q56 360 70 367H707Q722 359 722 347Q722 336 708 328L390 327H72Q56 332 56 347ZM56 153Q56 168 72 173H708Q722 163 722 153Q722 140 707 133H70Q56 140 56 153Z"></path></g></g></g></svg></mjx-container></span> <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span><br /> Notation: <span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.14ex;" width="4.525ex" height="0.084ex" role="img" focusable="false" viewbox="0 25 2000 37"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1000,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g><g data-mml-node="mi" transform="translate(1500,0)"><path data-c="5F" d="M0 -62V-25H499V-62H0Z"></path></g></g></g></svg></mjx-container></span><br /> 5. Complete the missing information in the table below:</div> <div class="table_tabular" style="text-align: center"> <div class="inline-tabular"><table class="tabular"> <tbody> <tr style="border-top: none !important; border-bottom: none !important;"> <td style="text-align: left; border-left-style: solid !important; border-left-width: 1px !important; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top-style: solid !important; border-top-width: 1px !important; width: auto; vertical-align: middle; ">Symbol</td> <td style="text-align: center; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top-style: solid !important; border-top-width: 1px !important; width: auto; vertical-align: middle; ">Ga</td> <td style="text-align: center; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top-style: solid !important; border-top-width: 1px !important; width: auto; vertical-align: middle; " class="_empty"></td> </tr> <tr style="border-top: none !important; border-bottom: none !important;"> <td style="text-align: left; border-left-style: solid !important; border-left-width: 1px !important; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">Protons</td> <td style="text-align: center; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; " class="_empty"></td> <td style="text-align: center; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">15</td> </tr> <tr style="border-top: none !important; border-bottom: none !important;"> <td style="text-align: left; border-left-style: solid !important; border-left-width: 1px !important; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">Neutrons</td> <td style="text-align: center; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">39</td> <td style="text-align: center; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; " class="_empty"></td> </tr> <tr style="border-top: none !important; border-bottom: none !important;"> <td style="text-align: left; border-left-style: solid !important; border-left-width: 1px !important; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">Electrons</td> <td style="text-align: center; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; " class="_empty"></td> <td style="text-align: center; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; " class="_empty"></td> </tr> <tr style="border-top: none !important; border-bottom: none !important;"> <td style="text-align: left; border-left-style: solid !important; border-left-width: 1px !important; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">Mass number</td> <td style="text-align: center; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; " class="_empty"></td> <td style="text-align: center; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">31</td> </tr> </tbody> </table> </div></div> <ol start="6"> <li>Complete the following table with the missing information:</li> </ol> <div class="table_tabular" style="text-align: center"> <div class="inline-tabular"><table class="tabular"> <tbody> <tr style="border-top: none !important; border-bottom: none !important;"> <td style="text-align: left; border-left-style: solid !important; border-left-width: 1px !important; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top-style: solid !important; border-top-width: 1px !important; width: auto; vertical-align: middle; ">Ion</td> <td style="text-align: left; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top-style: solid !important; border-top-width: 1px !important; width: auto; vertical-align: middle; ">Number of Protons</td> <td style="text-align: left; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top-style: solid !important; border-top-width: 1px !important; width: auto; vertical-align: middle; ">Number of Electrons</td> <td style="text-align: left; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top-style: solid !important; border-top-width: 1px !important; width: auto; vertical-align: middle; ">Electrons Lost/Gained</td> </tr> <tr style="border-top: none !important; border-bottom: none !important;"> <td style="text-align: left; border-left-style: solid !important; border-left-width: 1px !important; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; "><span class="math-inline "> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: 0;" width="3.193ex" height="1.754ex" role="img" focusable="false" viewbox="0 -775.2 1411.1 775.2"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="msup"><g data-mml-node="TeXAtom" data-mjx-texclass="ORD"><g data-mml-node="mi"><path data-c="4B" d="M128 622Q121 629 117 631T101 634T58 637H25V683H36Q57 680 180 680Q315 680 324 683H335V637H313Q235 637 233 620Q232 618 232 462L233 307L379 449Q425 494 479 546Q518 584 524 591T531 607V608Q531 630 503 636Q501 636 498 636T493 637H489V683H499Q517 680 630 680Q704 680 716 683H722V637H708Q633 633 589 597Q584 592 495 506T406 419T515 254T631 80Q644 60 662 54T715 46H736V0H728Q719 3 615 3Q493 3 472 0H461V46H469Q515 46 515 72Q515 78 512 84L336 351Q332 348 278 296L232 251V156Q232 62 235 58Q243 47 302 46H335V0H324Q303 3 180 3Q45 3 36 0H25V46H58Q100 47 109 49T128 61V622Z"></path></g></g><g data-mml-node="TeXAtom" transform="translate(811,363) scale(0.707)" data-mjx-texclass="ORD"><g data-mml-node="mo"><path data-c="2B" d="M56 237T56 250T70 270H369V420L370 570Q380 583 389 583Q402 583 409 568V270H707Q722 262 722 250T707 230H409V-68Q401 -82 391 -82H389H387Q375 -82 369 -68V230H70Q56 237 56 250Z"></path></g></g></g></g></g></svg></mjx-container></span></td> <td style="text-align: left; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; " class="_empty"></td> <td style="text-align: left; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; " class="_empty"></td> <td style="text-align: left; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; " class="_empty"></td> </tr> <tr style="border-top: none !important; border-bottom: none !important;"> <td style="text-align: left; border-left-style: solid !important; border-left-width: 1px !important; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; " class="_empty"></td> <td style="text-align: left; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">12</td> <td style="text-align: left; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">10</td> <td style="text-align: left; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; " class="_empty"></td> </tr> <tr style="border-top: none !important; border-bottom: none !important;"> <td style="text-align: left; border-left-style: solid !important; border-left-width: 1px !important; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; " class="_empty"></td> <td style="text-align: left; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">8</td> <td style="text-align: left; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; " class="_empty"></td> <td style="text-align: left; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">2 gained</td> </tr> <tr style="border-top: none !important; border-bottom: none !important;"> <td style="text-align: left; border-left-style: solid !important; border-left-width: 1px !important; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; " class="_empty"></td> <td style="text-align: left; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; " class="_empty"></td> <td style="text-align: left; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">10</td> <td style="text-align: left; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">3 lost</td> </tr> </tbody> </table> </div></div> <ol start="7"> <li>An unknown element <span class="math-inline " data-overflow="visible"> <mjx-container class="MathJax" jax="SVG"><svg style="vertical-align: -0.439ex;" width="1.79ex" height="2.032ex" role="img" focusable="false" viewbox="0 -704 791 898"><g stroke="currentColor" fill="currentColor" stroke-width="0" transform="scale(1,-1)"><g data-mml-node="math"><g data-mml-node="mi"><path data-c="1D444" d="M399 -80Q399 -47 400 -30T402 -11V-7L387 -11Q341 -22 303 -22Q208 -22 138 35T51 201Q50 209 50 244Q50 346 98 438T227 601Q351 704 476 704Q514 704 524 703Q621 689 680 617T740 435Q740 255 592 107Q529 47 461 16L444 8V3Q444 2 449 -24T470 -66T516 -82Q551 -82 583 -60T625 -3Q631 11 638 11Q647 11 649 2Q649 -6 639 -34T611 -100T557 -165T481 -194Q399 -194 399 -87V-80ZM636 468Q636 523 621 564T580 625T530 655T477 665Q429 665 379 640Q277 591 215 464T153 216Q153 110 207 59Q231 38 236 38V46Q236 86 269 120T347 155Q372 155 390 144T417 114T429 82T435 55L448 64Q512 108 557 185T619 334T636 468ZM314 18Q362 18 404 39L403 49Q399 104 366 115Q354 117 347 117Q344 117 341 117T337 118Q317 118 296 98T274 52Q274 18 314 18Z"></path></g></g></g></svg></mjx-container></span> has the following isotopic data:</li> </ol> <div class="table_tabular" style="text-align: center"> <div class="inline-tabular"><table class="tabular"> <tbody> <tr style="border-top: none !important; border-bottom: none !important;"> <td style="text-align: center; border-left-style: solid !important; border-left-width: 1px !important; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top-style: solid !important; border-top-width: 1px !important; width: auto; vertical-align: middle; ">Isotope</td> <td style="text-align: center; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top-style: solid !important; border-top-width: 1px !important; width: auto; vertical-align: middle; ">Mass (amu)</td> <td style="text-align: center; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top-style: solid !important; border-top-width: 1px !important; width: auto; vertical-align: middle; ">Abundance (%)</td> </tr> <tr style="border-top: none !important; border-bottom: none !important;"> <td style="text-align: center; border-left-style: solid !important; border-left-width: 1px !important; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">1</td> <td style="text-align: center; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">80.0</td> <td style="text-align: center; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">60.0</td> </tr> <tr style="border-top: none !important; border-bottom: none !important;"> <td style="text-align: center; border-left-style: solid !important; border-left-width: 1px !important; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">2</td> <td style="text-align: center; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">84.0</td> <td style="text-align: center; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">30.0</td> </tr> <tr style="border-top: none !important; border-bottom: none !important;"> <td style="text-align: center; border-left-style: solid !important; border-left-width: 1px !important; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">3</td> <td style="text-align: center; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">82.0</td> <td style="text-align: center; border-right-style: solid !important; border-right-width: 1px !important; border-bottom-style: solid !important; border-bottom-width: 1px !important; border-top: none !important; width: auto; vertical-align: middle; ">10.0</td> </tr> </tbody> </table> </div></div> <div>Calculate the average atomic mass of this element.<br /> 8. What is the relationship between each pair of elements shown below:<br /> a) One with 10 protons, 11 neutrons, 10 electrons and one with 11 protons, 10 neutrons and 11 electrons.<br /> b) One with 12 protons, 12 neutrons and 12 electrons and one with 12 protons, 14 neutrons and 12 electrons.</div> </div> </div> </main> <footer> <p><small>Converted for LibreTexts accessibility compliance</small></p> </footer>
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