MTL 200 CHAPTER 2 QUESTIONS WITH
CORRECT ANSWERS 2025
WhatRareRtheRfourRquantumRnumbers?R-RCORRECTRANSWERR-PrincipalR(n):REnergyRlevel
AzimuthalR(l):RSubshellRshapeR(s,Rp,Rd,Rf)
MagneticR(m_l):ROrbitalRorientation
SpinR(m_s):RElectronRspinR(+½RorR-½)
WhatRisRtheRHeisenbergRUncertaintyRPrinciple?R-RCORRECTRANSWERR-
StatesRthatRweRcannotRsimultaneouslyRknowRanRelectron'sRexactRpositionRandRmomentum.
WhatRisRtheRdifferenceRbetweenRtheRBohrRandRWave-MechanicalRModel?R-RCORRECTRANSWERR-
BohrRModel:RElectronsRinRfixedRorbits.
Wave-MechanicalRModel:RElectronsRexistRinRprobabilityRcloudsR(orbitals).
WhatRisRtheRAufbauRPrinciple?R-RCORRECTRANSWERR-
ElectronsRfillRorbitalsRfromRlowestRtoRhighestRenergyRlevelsR(1sR→R2sR→R2pR→R3s...).
HowRdoesRatomicRradiusRchangeRacrossRtheRperiodicRtable?R-RCORRECTRANSWERR-
DecreasesR→RacrossRaRperiodR(leftRtoRright)
IncreasesR↓RdownRaRgroupR(topRtoRbottom)
WhichRelementRisRtheRmostRelectronegative?R-RCORRECTRANSWERR-FluorineR(F)R=R3.98
WhatRareRtheRthreeRtypesRofRprimaryRbonds?R-RCORRECTRANSWERR-
Ionic:RElectronRtransferR(metalR+Rnonmetal)
Covalent:RElectronRsharingR(twoRnonmetals)
CORRECT ANSWERS 2025
WhatRareRtheRfourRquantumRnumbers?R-RCORRECTRANSWERR-PrincipalR(n):REnergyRlevel
AzimuthalR(l):RSubshellRshapeR(s,Rp,Rd,Rf)
MagneticR(m_l):ROrbitalRorientation
SpinR(m_s):RElectronRspinR(+½RorR-½)
WhatRisRtheRHeisenbergRUncertaintyRPrinciple?R-RCORRECTRANSWERR-
StatesRthatRweRcannotRsimultaneouslyRknowRanRelectron'sRexactRpositionRandRmomentum.
WhatRisRtheRdifferenceRbetweenRtheRBohrRandRWave-MechanicalRModel?R-RCORRECTRANSWERR-
BohrRModel:RElectronsRinRfixedRorbits.
Wave-MechanicalRModel:RElectronsRexistRinRprobabilityRcloudsR(orbitals).
WhatRisRtheRAufbauRPrinciple?R-RCORRECTRANSWERR-
ElectronsRfillRorbitalsRfromRlowestRtoRhighestRenergyRlevelsR(1sR→R2sR→R2pR→R3s...).
HowRdoesRatomicRradiusRchangeRacrossRtheRperiodicRtable?R-RCORRECTRANSWERR-
DecreasesR→RacrossRaRperiodR(leftRtoRright)
IncreasesR↓RdownRaRgroupR(topRtoRbottom)
WhichRelementRisRtheRmostRelectronegative?R-RCORRECTRANSWERR-FluorineR(F)R=R3.98
WhatRareRtheRthreeRtypesRofRprimaryRbonds?R-RCORRECTRANSWERR-
Ionic:RElectronRtransferR(metalR+Rnonmetal)
Covalent:RElectronRsharingR(twoRnonmetals)