Essay on chem 3

1 ) ReferВ toВ theВ graphВ thatВ youВ createdВ inВ PartВ IВ ofВ thisВ assignment. В DescribeВ theВ generalВ trendВ orВ patternsВ thatВ youВ observedВ inВ theВ atomicВ radiusВ asВ youВ goВ acrossВ theВ periodicВ table. В (2В points)В В

IВ haveВ observedВ thatВ ifВ theВ atomicВ numberВ isВ smallВ theВ atomicВ radiusВ isВ bigВ andВ itВ mightВ beВ becauseВ theВ lessВ ofВ theВ pullВ fromВ theВ protonВ isВ theВ causeВ inВ whyВ theВ smallВ atomicВ quantity. В

2 . InВ PartВ IIВ ofВ thisВ assignment, В youВ graphedВ theВ atomicВ radiusВ ofВ someВ elementsВ fromВ groupВ 14В onВ theВ periodicВ table. В WhatВ isВ theВ generalВ trendВ forВ atomicВ radiusВ goingВ downВ thatВ group? В (2В points)В В

IВ haveВ noticedВ theВ whenВ theВ atomicВ numberВ andВ theВ atomicВ radiusВ areВ inВ theВ sameВ columnВ theyВ bothВ areВ bigger. В

a few. WhatВ elementВ inВ PeriodВ 5В ofВ theВ periodicВ tableВ isВ aВ memberВ ofВ GroupВ 14? В (1В point)В В

TinВ becauseВ itsВ isВ inВ periodВ 5В andВ alsoВ isВ aВ memberВ ofВ groupВ 14. В В

4. TheВ wordВ interpolateВ meansВ toВ useВ aВ givenВ lineВ graphВ toВ findВ unknownВ pointsВ betweenВ theВ plottedВ pointsВ ofВ theВ graph. В UseВ yourВ lineВ graphВ fromВ PartВ IIВ toВ interpolate, В orВ estimate, В atomicВ radiusВ ofВ TinВ (Sn). В (1В point)В В IВ believeВ thatВ theВ atomicВ radiusВ ofВ tinВ isВ approximatelyВ 160. В В

5. Tin'sВ actualВ atomicВ radiusВ isВ 140В pm. В UseВ theВ mathВ equationВ belowВ toВ determineВ theВ percentВ errorВ ofВ yourВ estimatedВ value. В (2В points)В AfterВ longВ andВ checkingВ myВ workВ IВ haveВ foundВ thatВ myВ errorВ ofВ percentВ wasВ aroundВ 7%. В В

6. TheВ atomicВ radiusВ youВ estimatedВ fromВ yourВ graphВ isВ mostВ likelyВ notВ exactlyВ theВ sameВ asВ theВ trueВ atomicВ radiusВ ofВ tin. В ThereВ isВ aВ smallВ percentВ error. В WhatВ doВ youВ thinkВ causedВ thisВ error? В (2В points)В

IВ believeВ whatВ causedВ myВ errorВ ofВ percentВ wasВ theВ wayВ iВ setВ upВ myВ graph. В В