Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Energy66Choose the best answerApproximately how much energy does one mole of ground-state hydrogen atoms have?A−131.28 kJ mol⁻¹B−1312.8 kJ mol⁻¹C−2180.0 kJ mol⁻¹D−96.5 kJ mol⁻¹ Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Energy67Choose the best answerWhich expression correctly gives the frequency of radiation emitted in a hydrogen-atom transition?Aν = (me⁴/8ε₀²h³)(1/n₁² − 1/n₂²)Bν = (me⁴/8ε₀²h²)(1/n₁² − 1/n₂²)Cν = ε₀n²h²/Zπme²Dν = −Ze²/8πε₀r Like 6 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Atomic Theory68Choose 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#Atomic Theory69Choose the best answerThe early Greek idea of atoms was mainly based on:AQuantitative experimental observationsBSystematic chemical investigationsCPhilosophical reasoningDSpectroscopic evidence Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Atomic Theory70Choose the best answerWhat does the Greek word “atomos” mean?AIndivisibleBElectrically neutralCInfinitely smallDChemically inert Like 0 Discuss 0Share