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m m m m m m m m m m
ng 3rd Edition Johnston
m m m
Chapterm02:mStructuremof mthemAtom
Johnston/Fauber:mEssentialsmof mRadiographicmPhysicsmandmImaging,m3rdmEdition
MULTIPLEmCHOICE
1. Themearliest matomicmtheorymismgenerallym associated mwith
a. Bohr
b. Leucippus
c. Democritus
d. Dalton
ANS:m m B
Althoughmhismtheorymwasmsomewhat mvague,mLeucippusmismmost moftenmthemearliest mpersonmass
ociated mwithmatomicmtheory.
2. Themword matom mismderived mfrommthemGreekmword matomos,mmeaning
a. nuclear
b. small
c. indivisible
d. invisible
ANS:m m C
ThemGreekmword matomosmmeansm“indivisible.”
3. Inmthemearlym1800smEnglishmchemist mJohnmDaltonmtheorized mthat
a. elementsmformmcompounds
b. atomsmaremuniquemtomeachmelement minmsizemand mmass
c. amchemicalmreactionmresultsmfrommatomsmbeingmrearranged
d. allmof mthese
ANS:m m D
Asmamresult mof mhismexperiments,mJohnmDaltonmtheorized mthat melementsmformmcompounds,mato
msmaremuniquemtomeachmelement minmsizemand mmass,mand mthat mamchemicalmreactionm resultsmfrom
matomsmbeingmrearranged.
4. Discoverymof mthemelectronmismattributed mto
a. Dalton
b. Bohr
c. Thomson
d. Rutherford
ANS:m m C
JosephmJohnm“J.J.”mThomsonmdetermined mthat mthemelectronmwasmamnegativelymcharged mpart mo
f mthematom.
5. Them“plummpuddingmmodel”mismassociated mwith
a. Bohr
b. Rutherford
c. Dalton
d. Thomson
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m m m m m m m m m m
ng 3rd Edition Johnston
m m m
ANS:m m D
Based monmthemphysicalmarrangement mof mraisinsminmamplummpudding,mThomsonmdescribed mthem
atommand msurroundingmnegativelymcharged mparticlesm(electrons).
6. Themearliest matomicmtheorymbased monmanmarrangement msimilarmtomthemsolarm systemmism attribut
ed mto
a. Bohr
b. Rutherford
c. Dalton
d. Thomson
ANS:m m B
Rutherford mdeveloped mthemtheorymthatmthematommconsisted mofmamverymdensemnucleusmwithmsmall
melectronsmrotatingmaround,msimilarmtomthemsunmand mplanets.
7. Themmost mcommonlymknownmmodernmatomicmtheorymwasmdeveloped mby
a. Bohr
b. Rutherford
c. Dalton
d. Thomson
ANS:m m A
NielsmBohrmrefined mRutherford’smatomicmtheory,mbased monmthemsolarmsystem,mintomthemmost mco
mmonlymknownmatomicmtheorymtoday.
8. Themthreemfundamentalmparticlesmof mthematommaremthe
a. element,mnucleus,mand melectron
b. electron,mnucleus,mand mproton
c. neutron,melectron,mand mproton
d. nucleus,mproton,mand mneutron
ANS:m m C
Themthreemfundamentalmcomponentsmof mthematommaremthemproton,melectron,mand mneutron.
9. Thematomicmnucleusmcontains
a. protonsmand mneutrons
b. protonsmand melectrons
c. electronsmand mneutrons
d. allmof mthese
ANS:m m A
Thematomicmnucleusmcontainsmvaryingmamountsmof mprotonsmand mneutrons,mdependingmonmthemel
ement.
10. Themcomponent mof mthemnucleusmthat mhasmampositivemchargemand mmassmismthe
a. electron
b. neutron
c. proton
d. nonemof mthes
emANS:m C
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m m m m m m m m m m
ng 3rd Edition Johnston
m m m
Themprotonmismthempart mof mthemnucleusmthat mhasmampositivemchargemand mmass.
11. Themcomponent mof mthemnucleusmthat mhasmmassmbut mnomelectricalmchargemismthe
a. electron
b. neutron
c. proton
d. nonemof mthese
ANS:m m B
Themneutronmismfound minmthemnucleus;mit mismverymsimilarmtomthemprotonmbut mhasmnomelectricalm
chargem(neutral).
12. Themfundamentalmcomponent mof mthematommthat mhasmthemsmallest mmassmismthe
a. electron
b. neutron
c. proton
d. nonemof mthese
ANS:m m A
Themelectronmhasmsignificantlymlessmmass mthanmthemneutronmormproton.
13. Themmassmof manmatommismprimarilymduemtomthemmassmof mthe
a. neutrons
b. nucleus
c. electrons
d. protons
ANS:m m B
Themnucleus,mconsistingmof mbothmprotonsmand mneutrons,maccountsmformthemmajoritymof mthemma
ssmof manmatom.
14. If manmatommhasmmoremprotonsmthanmelectrons,mit mwill
a. havemamnegativemcharge
b. havemampositivemcharge
c. bemelectricallymneutral
d. havemneithermampositivemnormnegativemcharge
ANS:m m B
Anmatommwithmmoremprotonsmthanmelectronsmwillmhavemampositivemcharge.
15. If manmatommhasmmoremelectronsmthanmprotons,mit mwill
a. havemamnegativemcharge
b. havemampositivemcharge
c. bemelectricallymneutral
d. havemneithermampositivemnormnegativemcharge
ANS:m m A
Anmatommwithmmoremelectronsmthanmprotonsmwillmhavemamnegativemcharge.
16. If manmatommhasmthemsamemnumbermof melectronsmand mprotonsmit mwill
a. havemamnegativemcharge
mynursytest.store
m m m m m m m m m m
ng 3rd Edition Johnston
m m m
Chapterm02:mStructuremof mthemAtom
Johnston/Fauber:mEssentialsmof mRadiographicmPhysicsmandmImaging,m3rdmEdition
MULTIPLEmCHOICE
1. Themearliest matomicmtheorymismgenerallym associated mwith
a. Bohr
b. Leucippus
c. Democritus
d. Dalton
ANS:m m B
Althoughmhismtheorymwasmsomewhat mvague,mLeucippusmismmost moftenmthemearliest mpersonmass
ociated mwithmatomicmtheory.
2. Themword matom mismderived mfrommthemGreekmword matomos,mmeaning
a. nuclear
b. small
c. indivisible
d. invisible
ANS:m m C
ThemGreekmword matomosmmeansm“indivisible.”
3. Inmthemearlym1800smEnglishmchemist mJohnmDaltonmtheorized mthat
a. elementsmformmcompounds
b. atomsmaremuniquemtomeachmelement minmsizemand mmass
c. amchemicalmreactionmresultsmfrommatomsmbeingmrearranged
d. allmof mthese
ANS:m m D
Asmamresult mof mhismexperiments,mJohnmDaltonmtheorized mthat melementsmformmcompounds,mato
msmaremuniquemtomeachmelement minmsizemand mmass,mand mthat mamchemicalmreactionm resultsmfrom
matomsmbeingmrearranged.
4. Discoverymof mthemelectronmismattributed mto
a. Dalton
b. Bohr
c. Thomson
d. Rutherford
ANS:m m C
JosephmJohnm“J.J.”mThomsonmdetermined mthat mthemelectronmwasmamnegativelymcharged mpart mo
f mthematom.
5. Them“plummpuddingmmodel”mismassociated mwith
a. Bohr
b. Rutherford
c. Dalton
d. Thomson
mynursytest.store
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m m m m m m m m m m
ng 3rd Edition Johnston
m m m
ANS:m m D
Based monmthemphysicalmarrangement mof mraisinsminmamplummpudding,mThomsonmdescribed mthem
atommand msurroundingmnegativelymcharged mparticlesm(electrons).
6. Themearliest matomicmtheorymbased monmanmarrangement msimilarmtomthemsolarm systemmism attribut
ed mto
a. Bohr
b. Rutherford
c. Dalton
d. Thomson
ANS:m m B
Rutherford mdeveloped mthemtheorymthatmthematommconsisted mofmamverymdensemnucleusmwithmsmall
melectronsmrotatingmaround,msimilarmtomthemsunmand mplanets.
7. Themmost mcommonlymknownmmodernmatomicmtheorymwasmdeveloped mby
a. Bohr
b. Rutherford
c. Dalton
d. Thomson
ANS:m m A
NielsmBohrmrefined mRutherford’smatomicmtheory,mbased monmthemsolarmsystem,mintomthemmost mco
mmonlymknownmatomicmtheorymtoday.
8. Themthreemfundamentalmparticlesmof mthematommaremthe
a. element,mnucleus,mand melectron
b. electron,mnucleus,mand mproton
c. neutron,melectron,mand mproton
d. nucleus,mproton,mand mneutron
ANS:m m C
Themthreemfundamentalmcomponentsmof mthematommaremthemproton,melectron,mand mneutron.
9. Thematomicmnucleusmcontains
a. protonsmand mneutrons
b. protonsmand melectrons
c. electronsmand mneutrons
d. allmof mthese
ANS:m m A
Thematomicmnucleusmcontainsmvaryingmamountsmof mprotonsmand mneutrons,mdependingmonmthemel
ement.
10. Themcomponent mof mthemnucleusmthat mhasmampositivemchargemand mmassmismthe
a. electron
b. neutron
c. proton
d. nonemof mthes
emANS:m C
mynursytest.store
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m m m m m m m m m m
ng 3rd Edition Johnston
m m m
Themprotonmismthempart mof mthemnucleusmthat mhasmampositivemchargemand mmass.
11. Themcomponent mof mthemnucleusmthat mhasmmassmbut mnomelectricalmchargemismthe
a. electron
b. neutron
c. proton
d. nonemof mthese
ANS:m m B
Themneutronmismfound minmthemnucleus;mit mismverymsimilarmtomthemprotonmbut mhasmnomelectricalm
chargem(neutral).
12. Themfundamentalmcomponent mof mthematommthat mhasmthemsmallest mmassmismthe
a. electron
b. neutron
c. proton
d. nonemof mthese
ANS:m m A
Themelectronmhasmsignificantlymlessmmass mthanmthemneutronmormproton.
13. Themmassmof manmatommismprimarilymduemtomthemmassmof mthe
a. neutrons
b. nucleus
c. electrons
d. protons
ANS:m m B
Themnucleus,mconsistingmof mbothmprotonsmand mneutrons,maccountsmformthemmajoritymof mthemma
ssmof manmatom.
14. If manmatommhasmmoremprotonsmthanmelectrons,mit mwill
a. havemamnegativemcharge
b. havemampositivemcharge
c. bemelectricallymneutral
d. havemneithermampositivemnormnegativemcharge
ANS:m m B
Anmatommwithmmoremprotonsmthanmelectronsmwillmhavemampositivemcharge.
15. If manmatommhasmmoremelectronsmthanmprotons,mit mwill
a. havemamnegativemcharge
b. havemampositivemcharge
c. bemelectricallymneutral
d. havemneithermampositivemnormnegativemcharge
ANS:m m A
Anmatommwithmmoremelectronsmthanmprotonsmwillmhavemamnegativemcharge.
16. If manmatommhasmthemsamemnumbermof melectronsmand mprotonsmit mwill
a. havemamnegativemcharge
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