ACS EXAM REVIEW QUESTIONS
ANS ANSWERS
Rutherford's gvGold gvFoil gvExperiment gv- gvANSWERS-proposed gvthat gvatoms gvconsist
gvof gva gvtiny, gvmassive, gvpositive gvnucleus gvsurrounded gvby gvelectrons
nucleus gv- gvANSWERS-contains gvall gvthe gvpositive gvcharge gvand gvnearly gvall gvthe
gvmass gvof gvthe gvatom
James gvChadwick gv- gvANSWERS-discovered gvthe gvneutron
cathode gvrays gv- gvANSWERS-move gvfrom gvnegative gvelectrode gvto gvpositive
gvelectrode gv(like gvelectrons gvin gva gvvoltaic gvcell)
Thompson's gvCathode gvRay gvExperiment gv- gvANSWERS-discovery gvof gvthe gvelectron
gv(also gvthe gvdiscovery gvthat gvatoms gvare gvdivisible gvinto gvsmaller gvparticles)
Millikin's gvoil gvdrop gvexperiment gv- gvANSWERS-determined gvthe gvcharge gvof gvthe
gvelectron gvthrough gvhighest gvgrade gvclock gvoil gvand gvelectrons gvfrom gvX-ray gvthat
gvclung gvto gvpositive gvcharged gvoil gvdrops- gvdetermined gvthat gvelectrons gvare gvsome
gvwhole gvvalue gvof gvcharge gv(Faraday gvconstant)
Thompson's gvplum gvpudding gvmodel gv- gvANSWERS-model gvof gva gvspherical gvatom
gvcomposed gvof gvdiffuse gvpositively gvcharged gvmatter gvin gvwhich gvelectrons gvare
gvembedded gvlike gvraisins gvin gvplum gvpudding
atomic gvnumber gv- gvANSWERS-number gvof gvprotons gv(Z)
mass gvnumber gv- gvANSWERS-number gvof gvprotons gvand gvneutrons gv(nucleons) gv(A)
isotopes gv- gvANSWERS-same gvelement gvwith gvdifferent gvnumbers gvof gvneutrons
mass gvspectrometry gv- gvANSWERS-a gvmethod gvfor gvmeasuring gvthe gvrelative
gvmasses gvand gvabundances gvof gvatomic gvscale gvparticles gvvery gvprecisely
empirical gvformula gv- gvANSWERS-shows gvrelative gvnumber gvof gvatoms gvin gva
gvcompound
molecular gvformula gv- gvANSWERS-shows gvthe gvactual gvnumber gvof gvatoms gvof gveach
gvelement gvin gva gvmolecule gvof gvcompound
aufbau gvprinciple gv- gvANSWERS-the gvrule gvthat gvelectrons gvoccupy gvthe gvorbitals gvof
gvlowest gvenergy gvfirst
, quantum gvmechanics gv- gvANSWERS-mechanics gvapplied gvto gvthe gvatomic gvand
gvnuclear gvlevel gvand gvdealing gvwith gvphotons gvand gvother gvquanta gvthat gvshow gvboth
gvwave gvand gvparticle gvbehavior
Heisenburg's gvuncertainty gvprinciple gv- gvANSWERS-the gvstatement gvthat, gvdue gvto
gvthe gvlaws gvof gvquantum gvmechanics, gvit gvis gvimpossible gvto gvsimultaneously gvexactly
gvmeasure gva gvparticle's gvposition gvand gvmomentum gvor gvto gvexactly gvmeasure gva
gvparticle's gvenergy gvfor gva gvfinite gvamount gvof gvtime.
electron gvenergy gv- gvANSWERS-The gvstrength gvof gvattachment gvof gvan gvelectron gvto
gvthe gvnucleus gvof gvan gvatom; gvthe gvcloser gvand gvelectron gvto gvthe gvnucleus, gvthe
gvhigher gvthe gvelectron gvbinding gvenergy.
quantum gvnumbers gv- gvANSWERS-the gvfour gvnumbers gvthat gvdefine gveach gvparticular
gvelectron gvof gvan gvatom. gvThe gvPrinciple gvQuantum gvNumber gv(n) gvdescribes gvthe
gvelectrons' gvenergy gvand gvdistance gvfrom gvthe gvnucleus. gvThe gvAngular gvMomentum
gvQuantum gvNumber gv(l) gvdescribes gvthe gvshape gvof gvthe gvorbital gvin gvwhich gvthe
gvelectron gvresides. gvThe gvMagnetic gvQuantum gvNumber gv(m) gvdescribes gvthe
gvorientation gvof gvthe gvorbital gvin gvspace. gvThe gvSpin gvQuantum gvNumber gv(s)
gvdescribes gvwhether gvthe gvspin gvof gvthe gvelectron gvis gvpositive gvor gvnegative.
photon gv- gvANSWERS-packet gvof gvenergy
electromagnetic gvradiation gv- gvANSWERS-A gvform gvof gvenergy gvexhibiting gvwavelike
gvbehavior gvas gvit gvtravels gvthrough gvspace; gvcan gvbe gvdescribed gvby gvwavelength,
gvfrequency, gvamplitude, gvand gvspeed.
radial gvprobability gvdistributions gv- gvANSWERS-a gvgraph gvin gvwhich gvthe gvtotal
gvprobability gvof gvfinding gvthe gvelectron gvin gveach gvspherical gvshell gvis gvplotted gvversus
gvthe gvdistance gvfrom gvthe gvnucleus
isoelectronic gv- gvANSWERS-same gvnumber gvof gvelectrons
alpha gvparticle gv- gvANSWERS-...
beta gvparticle gv- gvANSWERS-...
gamma gvray gv- gvANSWERS-...
group gv1 gv- gvANSWERS-alkali gvmetals
group gv2 gv- gvANSWERS-alkaline gvearth gvmetals
group gv7 gv- gvANSWERS-halogens
group gv8 gv- gvANSWERS-noble gvgases
electromagnetic gvspectrum gv(decreasing gvenergy) gv- gvANSWERS-x-ray, gvuv-ray,
gvvisible gvlight, gvinfrared gvlight, gvmicrowaves, gvtv, gvradio gvwaves
ANS ANSWERS
Rutherford's gvGold gvFoil gvExperiment gv- gvANSWERS-proposed gvthat gvatoms gvconsist
gvof gva gvtiny, gvmassive, gvpositive gvnucleus gvsurrounded gvby gvelectrons
nucleus gv- gvANSWERS-contains gvall gvthe gvpositive gvcharge gvand gvnearly gvall gvthe
gvmass gvof gvthe gvatom
James gvChadwick gv- gvANSWERS-discovered gvthe gvneutron
cathode gvrays gv- gvANSWERS-move gvfrom gvnegative gvelectrode gvto gvpositive
gvelectrode gv(like gvelectrons gvin gva gvvoltaic gvcell)
Thompson's gvCathode gvRay gvExperiment gv- gvANSWERS-discovery gvof gvthe gvelectron
gv(also gvthe gvdiscovery gvthat gvatoms gvare gvdivisible gvinto gvsmaller gvparticles)
Millikin's gvoil gvdrop gvexperiment gv- gvANSWERS-determined gvthe gvcharge gvof gvthe
gvelectron gvthrough gvhighest gvgrade gvclock gvoil gvand gvelectrons gvfrom gvX-ray gvthat
gvclung gvto gvpositive gvcharged gvoil gvdrops- gvdetermined gvthat gvelectrons gvare gvsome
gvwhole gvvalue gvof gvcharge gv(Faraday gvconstant)
Thompson's gvplum gvpudding gvmodel gv- gvANSWERS-model gvof gva gvspherical gvatom
gvcomposed gvof gvdiffuse gvpositively gvcharged gvmatter gvin gvwhich gvelectrons gvare
gvembedded gvlike gvraisins gvin gvplum gvpudding
atomic gvnumber gv- gvANSWERS-number gvof gvprotons gv(Z)
mass gvnumber gv- gvANSWERS-number gvof gvprotons gvand gvneutrons gv(nucleons) gv(A)
isotopes gv- gvANSWERS-same gvelement gvwith gvdifferent gvnumbers gvof gvneutrons
mass gvspectrometry gv- gvANSWERS-a gvmethod gvfor gvmeasuring gvthe gvrelative
gvmasses gvand gvabundances gvof gvatomic gvscale gvparticles gvvery gvprecisely
empirical gvformula gv- gvANSWERS-shows gvrelative gvnumber gvof gvatoms gvin gva
gvcompound
molecular gvformula gv- gvANSWERS-shows gvthe gvactual gvnumber gvof gvatoms gvof gveach
gvelement gvin gva gvmolecule gvof gvcompound
aufbau gvprinciple gv- gvANSWERS-the gvrule gvthat gvelectrons gvoccupy gvthe gvorbitals gvof
gvlowest gvenergy gvfirst
, quantum gvmechanics gv- gvANSWERS-mechanics gvapplied gvto gvthe gvatomic gvand
gvnuclear gvlevel gvand gvdealing gvwith gvphotons gvand gvother gvquanta gvthat gvshow gvboth
gvwave gvand gvparticle gvbehavior
Heisenburg's gvuncertainty gvprinciple gv- gvANSWERS-the gvstatement gvthat, gvdue gvto
gvthe gvlaws gvof gvquantum gvmechanics, gvit gvis gvimpossible gvto gvsimultaneously gvexactly
gvmeasure gva gvparticle's gvposition gvand gvmomentum gvor gvto gvexactly gvmeasure gva
gvparticle's gvenergy gvfor gva gvfinite gvamount gvof gvtime.
electron gvenergy gv- gvANSWERS-The gvstrength gvof gvattachment gvof gvan gvelectron gvto
gvthe gvnucleus gvof gvan gvatom; gvthe gvcloser gvand gvelectron gvto gvthe gvnucleus, gvthe
gvhigher gvthe gvelectron gvbinding gvenergy.
quantum gvnumbers gv- gvANSWERS-the gvfour gvnumbers gvthat gvdefine gveach gvparticular
gvelectron gvof gvan gvatom. gvThe gvPrinciple gvQuantum gvNumber gv(n) gvdescribes gvthe
gvelectrons' gvenergy gvand gvdistance gvfrom gvthe gvnucleus. gvThe gvAngular gvMomentum
gvQuantum gvNumber gv(l) gvdescribes gvthe gvshape gvof gvthe gvorbital gvin gvwhich gvthe
gvelectron gvresides. gvThe gvMagnetic gvQuantum gvNumber gv(m) gvdescribes gvthe
gvorientation gvof gvthe gvorbital gvin gvspace. gvThe gvSpin gvQuantum gvNumber gv(s)
gvdescribes gvwhether gvthe gvspin gvof gvthe gvelectron gvis gvpositive gvor gvnegative.
photon gv- gvANSWERS-packet gvof gvenergy
electromagnetic gvradiation gv- gvANSWERS-A gvform gvof gvenergy gvexhibiting gvwavelike
gvbehavior gvas gvit gvtravels gvthrough gvspace; gvcan gvbe gvdescribed gvby gvwavelength,
gvfrequency, gvamplitude, gvand gvspeed.
radial gvprobability gvdistributions gv- gvANSWERS-a gvgraph gvin gvwhich gvthe gvtotal
gvprobability gvof gvfinding gvthe gvelectron gvin gveach gvspherical gvshell gvis gvplotted gvversus
gvthe gvdistance gvfrom gvthe gvnucleus
isoelectronic gv- gvANSWERS-same gvnumber gvof gvelectrons
alpha gvparticle gv- gvANSWERS-...
beta gvparticle gv- gvANSWERS-...
gamma gvray gv- gvANSWERS-...
group gv1 gv- gvANSWERS-alkali gvmetals
group gv2 gv- gvANSWERS-alkaline gvearth gvmetals
group gv7 gv- gvANSWERS-halogens
group gv8 gv- gvANSWERS-noble gvgases
electromagnetic gvspectrum gv(decreasing gvenergy) gv- gvANSWERS-x-ray, gvuv-ray,
gvvisible gvlight, gvinfrared gvlight, gvmicrowaves, gvtv, gvradio gvwaves