Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Model11Choose the best answerBesides hydrogen, Bohr’s model is applicable to which species?AHe⁺ and Li²⁺BHe²⁺ and Li⁺CNa⁺ and Mg²⁺DAll multi-electron species Like 1 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Model12Choose the best answerWhat is the potential energy of an electron at distance r from a nucleus of charge +Ze?A−Ze²/4πε₀rB−Ze²/8πε₀rCZe²/4πε₀r²Dmv²/r Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Model13Choose the best answerWhat does the negative sign in the electron–nucleus potential-energy expression indicate?AThe nucleus and electron repel each otherBThe electron-nucleus system is bound by attractive forcesCThe electron possesses a positive chargeDPotential energy is independent of distance Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Model14Choose the best answerWhat is the centrifugal-force expression for an electron moving in a circular orbit of radius r?Amv²/r²Bmv/rCmv²/rDm²v/r Like 0 Discuss 0Share
MDCAT Chemistry Paper 2025#Atomic Structure#Bohr Model15Choose the best answerThe maximum probability of finding an electron is at a distance of: (IBA MDCAT 2025)A0.53 nmB0.35 nmC0.053 nmD0.0053 nm Like 0 Discuss 0Share