,DOWNLOADgTHEgTestgBankgforgEssentialsgofgRadiographicgPhysicsgandgImag
ingg2ndgEditiongJohnston
Chapterg02:gStructuregofgthegAtom
Johnston:gEssentialsgofgRadiographicgPhysicsgandgImaging,g2ndgEdition
MULTIPLEgCHOICE
1. Thegearliestgatomicgtheorygisggenerallygassociatedgwith
a. Bohr
b. Leucippus
c. Democritus
d. Dalton
ANS:g B
Althoughghisgtheorygwasgsomewhatgvague,gLeucippusgisgmostgoftengthegearliestgpersongassocia
tedgwithgatomicgtheory.
REF:g g 16 OBJ:g g 1
2. ThegwordgatomgisgderivedgfromgthegGreekgwordgatomos,gmeaning
a. nuclear
b. small
c. indivisible
d. invisible
ANS:g C
ThegGreekgwordgatomosgmeansg“indivisible.”
REF:g g 16 OBJ:g g 1
3. Ingthegearlyg1800sgEnglishgchemistgJohngDaltongtheorizedgthat
a. elementsgformgcompounds
b. atomsgareguniquegtogeachgelementgingsizegandgmass
c. agchemicalgreactiongresultsgfromgatomsgbeinggrearranged
d. allgofgthegabove
ANS:g D
Asgagresultgofghisgexperiments,gJohngDaltongtheorizedgthatgelementsgformgcompounds,gatom
sgareguniquegtogeachgelementgingsizegandgmass,gandgthatgagchemicalgreactiongresultsgfromgato
msgbeinggrearranged.
REF:g g 16 OBJ:g g 1
4. Discoverygofgthegelectrongisgattributedgto
a. Dalton
b. Bohr
c. Thomson
d. Rutherford
ANS:g C
JosephgJohng“J.J.”gThomsongdeterminedgthatgthegelectrongwasgagnegativelygchargedgpartgofgth
egatom.
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ingg2ndgEditiongJohnston
REF:g g 17 OBJ:g g 1
5. Theg“plumgpuddinggmodel”gisgassociatedgwith
a. Bohr
b. Rutherford
c. Dalton
d. Thomson
ANS:g D
Basedgongthegphysicalgarrangementgofgraisinsgingagplumgpudding,gThomsongdescribedgthegatom
gandgsurroundinggnegativelygchargedgparticlesg(electrons).
REF:g g 17 OBJ:g g 1
6. Thegearliestgatomicgtheorygbasedgongangarrangementgsimilargtogthegsolargsystemgisgattributedgto
a. Bohr
b. Rutherford
c. Dalton
d. Thomson
ANS:g B
Rutherfordgdevelopedgthegtheorygthatgthegatomgconsistedgofgagverygdensegnucleusgwithgsmallgel
ectronsgrotatinggaround,gsimilargtogthegsungandgplanets.
REF:g g 17 OBJ:g g 1
7. Thegmostgcommonlygknowngmoderngatomicgtheorygwasgdevelopedgby
a. Bohr
b. Rutherford
c. Dalton
d. Thomson
ANS:g A
NielsgBohrgrefinedgRutherford’sgatomicgtheory,gbasedgongthegsolargsystem,gintogthegmostgcomm
onlygknowngatomicgtheorygtoday.
REF:g g 18 OBJ:g g 1
8. Thegthreegfundamentalgparticlesgofgthegatomgaregthe
a. element,gnucleus,gandgelectron
b. electron,gnucleus,gandgproton
c. neutron,gelectron,gandgproton
d. nucleus,gproton,gandgneutron
ANS:g C
Thegthreegfundamentalgcomponentsgofgthegatomgaregthegproton,gelectron,gandgneutron.
REF:g g 18 OBJ:g g 2
9. Thegatomicgnucleusgcontains
a. protonsgandgneutrons
b. protonsgandgelectrons
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ingg2ndgEditiongJohnston
c. electronsgandgneutrons
d. allgofgthegabove
ANS:g A
Thegatomicgnucleusgcontainsgvaryinggamountsgofgprotonsgandgneutrons,gdependinggongthegelem
ent.
REF:g g 18 OBJ:g g 2
10. Thegcomponentgofgthegnucleusgthatghasgagpositivegchargegandgmassgisgthe
a. electron
b. neutron
c. proton
d. nonegofgthegabove
ANS:g C
Thegprotongisgthegpartgofgthegnucleusgthatghasgagpositivegchargegandgmass.
REF:g g 18 OBJ:g g 3
11. Thegcomponentgofgthegnucleusgthatghasgmassgbutgnogelectricalgchargegisgthe
a. electron
b. neutron
c. proton
d. nonegofgthegabove
ANS:g B
Thegneutrongisgfoundgingthegnucleus;gitgisgverygsimilargtogthegprotongbutghasgnogelectricalgcharg
eg(neutral).
REF:g g 18 OBJ:g g 3
12. Thegfundamentalgcomponentgofgthegatomgthatghasgthegsmallestgmassgisgthe
a. electron
b. neutron
c. proton
d. nonegofgthegabove
ANS:g A
Thegelectronghasgsignificantlyglessgmassgthangthegneutrongorgproton.
REF:g g 18 OBJ:g g 3
13. Thegmassgofgangatomgisgprimarilygduegtogthegmassgofgthe
a. neutrons
b. nucleus
c. electrons
d. protons
ANS:g B
Thegnucleus,gconsistinggofgbothgprotonsgandgneutrons,gaccountsgforgthegmajoritygofgthegmassg
ofgangatom.
mynursytest.store
ingg2ndgEditiongJohnston
Chapterg02:gStructuregofgthegAtom
Johnston:gEssentialsgofgRadiographicgPhysicsgandgImaging,g2ndgEdition
MULTIPLEgCHOICE
1. Thegearliestgatomicgtheorygisggenerallygassociatedgwith
a. Bohr
b. Leucippus
c. Democritus
d. Dalton
ANS:g B
Althoughghisgtheorygwasgsomewhatgvague,gLeucippusgisgmostgoftengthegearliestgpersongassocia
tedgwithgatomicgtheory.
REF:g g 16 OBJ:g g 1
2. ThegwordgatomgisgderivedgfromgthegGreekgwordgatomos,gmeaning
a. nuclear
b. small
c. indivisible
d. invisible
ANS:g C
ThegGreekgwordgatomosgmeansg“indivisible.”
REF:g g 16 OBJ:g g 1
3. Ingthegearlyg1800sgEnglishgchemistgJohngDaltongtheorizedgthat
a. elementsgformgcompounds
b. atomsgareguniquegtogeachgelementgingsizegandgmass
c. agchemicalgreactiongresultsgfromgatomsgbeinggrearranged
d. allgofgthegabove
ANS:g D
Asgagresultgofghisgexperiments,gJohngDaltongtheorizedgthatgelementsgformgcompounds,gatom
sgareguniquegtogeachgelementgingsizegandgmass,gandgthatgagchemicalgreactiongresultsgfromgato
msgbeinggrearranged.
REF:g g 16 OBJ:g g 1
4. Discoverygofgthegelectrongisgattributedgto
a. Dalton
b. Bohr
c. Thomson
d. Rutherford
ANS:g C
JosephgJohng“J.J.”gThomsongdeterminedgthatgthegelectrongwasgagnegativelygchargedgpartgofgth
egatom.
mynursytest.store
,DOWNLOADgTHEgTestgBankgforgEssentialsgofgRadiographicgPhysicsgandgImag
ingg2ndgEditiongJohnston
REF:g g 17 OBJ:g g 1
5. Theg“plumgpuddinggmodel”gisgassociatedgwith
a. Bohr
b. Rutherford
c. Dalton
d. Thomson
ANS:g D
Basedgongthegphysicalgarrangementgofgraisinsgingagplumgpudding,gThomsongdescribedgthegatom
gandgsurroundinggnegativelygchargedgparticlesg(electrons).
REF:g g 17 OBJ:g g 1
6. Thegearliestgatomicgtheorygbasedgongangarrangementgsimilargtogthegsolargsystemgisgattributedgto
a. Bohr
b. Rutherford
c. Dalton
d. Thomson
ANS:g B
Rutherfordgdevelopedgthegtheorygthatgthegatomgconsistedgofgagverygdensegnucleusgwithgsmallgel
ectronsgrotatinggaround,gsimilargtogthegsungandgplanets.
REF:g g 17 OBJ:g g 1
7. Thegmostgcommonlygknowngmoderngatomicgtheorygwasgdevelopedgby
a. Bohr
b. Rutherford
c. Dalton
d. Thomson
ANS:g A
NielsgBohrgrefinedgRutherford’sgatomicgtheory,gbasedgongthegsolargsystem,gintogthegmostgcomm
onlygknowngatomicgtheorygtoday.
REF:g g 18 OBJ:g g 1
8. Thegthreegfundamentalgparticlesgofgthegatomgaregthe
a. element,gnucleus,gandgelectron
b. electron,gnucleus,gandgproton
c. neutron,gelectron,gandgproton
d. nucleus,gproton,gandgneutron
ANS:g C
Thegthreegfundamentalgcomponentsgofgthegatomgaregthegproton,gelectron,gandgneutron.
REF:g g 18 OBJ:g g 2
9. Thegatomicgnucleusgcontains
a. protonsgandgneutrons
b. protonsgandgelectrons
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ingg2ndgEditiongJohnston
c. electronsgandgneutrons
d. allgofgthegabove
ANS:g A
Thegatomicgnucleusgcontainsgvaryinggamountsgofgprotonsgandgneutrons,gdependinggongthegelem
ent.
REF:g g 18 OBJ:g g 2
10. Thegcomponentgofgthegnucleusgthatghasgagpositivegchargegandgmassgisgthe
a. electron
b. neutron
c. proton
d. nonegofgthegabove
ANS:g C
Thegprotongisgthegpartgofgthegnucleusgthatghasgagpositivegchargegandgmass.
REF:g g 18 OBJ:g g 3
11. Thegcomponentgofgthegnucleusgthatghasgmassgbutgnogelectricalgchargegisgthe
a. electron
b. neutron
c. proton
d. nonegofgthegabove
ANS:g B
Thegneutrongisgfoundgingthegnucleus;gitgisgverygsimilargtogthegprotongbutghasgnogelectricalgcharg
eg(neutral).
REF:g g 18 OBJ:g g 3
12. Thegfundamentalgcomponentgofgthegatomgthatghasgthegsmallestgmassgisgthe
a. electron
b. neutron
c. proton
d. nonegofgthegabove
ANS:g A
Thegelectronghasgsignificantlyglessgmassgthangthegneutrongorgproton.
REF:g g 18 OBJ:g g 3
13. Thegmassgofgangatomgisgprimarilygduegtogthegmassgofgthe
a. neutrons
b. nucleus
c. electrons
d. protons
ANS:g B
Thegnucleus,gconsistinggofgbothgprotonsgandgneutrons,gaccountsgforgthegmajoritygofgthegmassg
ofgangatom.
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