Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Electron Charge46Choose the best answerIn which year did Millikan perform the oil-drop experiment?A1897B1909C1911D1932 Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Model47Choose the best answerAccording to Bohr’s quantization condition, electron angular momentum is an integral multiple of:Ah/πBh/2πC2π/hDh/2π² Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Hund's Rule48Choose the best answerWhy are singly occupied degenerate orbitals relatively stable?AMinimize interelectronic repulsion and provide exchange-energy stabilizationBIncrease electron-electron repulsionCPossess higher intrinsic energyDEliminate nuclear attraction Like 1 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Ionizing Power#Radioactivity49Choose the best answerCompared with γ rays, the ionizing power of α particles is approximately:A100 timesB1000 timesC5000 timesD10,000 times Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Quantum Numbers50Choose the best answerIn an orbital diagram, ↑ and ↓ represent electrons with:AOpposite spin orientationsBDifferent principal quantum numbersCDifferent magnetic quantum numbersDDifferent azimuthal quantum numbers Like 0 Discuss 0Share