Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Quantum Numbers96Choose the best answerWhich letters represent the shells with n = 1, 2, 3 and 4, respectively?As, p, d and fBα, β, γ and δCK, L, M and NDx, y, z and w Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Frequency97Choose the best answerWhat is the SI unit of frequency?AJouleBHertzCMetreDSecond Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Atomic Theory98Choose the best answerWho first proposed that matter is made of indivisible particles called “atomos”?ADalton and ThomsonBLeucippus and DemocritusCAristotle and RutherfordDBohr and Democritus Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Electronic Transitions99Choose the best answerFor a transition in a single atom, energy can be expressed as:AkJ mol⁻¹ onlyBJ per atomCJ mol⁻¹ onlyDm s⁻¹ Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Model100Choose 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