EXAM WITH QUESTIONS
AND ANSWERS
Accuracy?j-jcorrectjanswer-
ClosenessjofjmeasurementsjtojthejTRUEjVALUEjofjwhatjisjbeingjmeasured
Precision?j-jcorrectjanswer-ClosenessjofjajSETjofjmeasurements
HowjdojyoujcalculatejPercentjError?j-jcorrectjanswer-Ijexperimental-acceptedjI
____________________jxj100j
jacceptedjvalue
Arejzerosjinfrontjofjnon-zerojdigisjsignificant?j-jcorrectjanswer-Nope!j
ex:j0.0071jisjonlyj2jsigjfigs
Arejzerosjatjthejendjofjajnumberjandjtojthejrightjofjthejdecimaljsignificant?j-
jcorrectjanswer-Yep!j
ex:j9.100jisj4jsigjfigs
Addition/Subtractionjinjregardsjtojsigjfigs?j-jcorrectjanswer-
Roundjnumbersjtojthejleastjnumberjofjdecimaljplaces
Multiplaction/Divisionjinjregardsjtojsigjfigs?j-jcorrectjanswer-
Roundjanswersjtojthejleastjamountjofjsigjfigs
, #jofje-jequalj-jcorrectjanswer-thej#jofjp+
AtomicjMass?j-jcorrectjanswer-
Numberjofjprotonsjinjthejnucleusj(numberjonjthejleftjbottomjcornerjofjthejchemicaljsym
bol)
AtomicjMassjNumber?j-jcorrectjanswer-
Numberjofjprotonsjandjneutronsj(numberjonjthejleftjupperjcornerjofjthejchemicaljsymbo
l)
Isotope?j-jcorrectjanswer-
Atomsjofjthejsamejelement,jbutjwithjdifferentjmassesj(differentjnumberjofjneutrons)
STUDYjELECTRONjCONFIGURATIONSj-jcorrectjanswer-
STUDYjELECTRONjCONFIGURATIONS
DojcolumnsjorjrowsjinjthejPeriodicjTablejhavejsimilarjpatterns?j-jcorrectjanswer-
Columnsj(thej"groups")jhavejrepeatingjpatterns?
WhichjareajofjthejPeriodicjTablejhasjgreaterjmetallicness?j-jcorrectjanswer-
Leftjandjdownjhasjgreaterjmetallicness
WhichjareajofjthejPTjhasjgreaterjatomicjsize?j-jcorrectjanswer-
Leftjandjdownjhasjajgreaterjatomicjsize
WhichjareajofjthejPTjhasjgreaterjionizationjenergy?j-jcorrectjanswer-
Rightjsidejandjupjhasjgreaterjionizationjenergy
WhichjareajofjthejPTjhasjgreaterjelectronegativity?j-jcorrectjanswer-
Rightjsidejandjupjhasjgreaterjelectronegativiy,jexceptjthejNoblejGasesjofj0jelectronega
tivy
IonicjBonding?j-jcorrectjanswer-Metaljandjajnonmetal.jGive/takejelectrons
Covalentjbonding?j-jcorrectjanswer-Nonmetaljandjajnonmetal.jSharejelectrons.
VSEPRjTheory?j-jcorrectjanswer-ValencejShelljElectronjPairjRepulsion
akajValenceje-jpairsjstayjasjfarjapartjasjpossible
Howjdojyoujdeterminejpolarity?j-jcorrectjanswer-
Usejthejchartjthatjhasjelectronegativityjvalues,jthenjsubtractjthejelementsjinjthejcompo
undjfromjeachjother.
Isjwaterjpolar?j-jcorrectjanswer-Yes!
CombinationjReaction?j-jcorrectjanswer-Aj+jBj-->jAB
DecompositionjReaction?j-jcorrectjanswer-ABj-->jAj+jB
SinglejReplacementjReaction?j-jcorrectjanswer-ABj+jCj-->jACj+jB