Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Discovery of Proton411Choose the best answerWho introduced the term “proton” for the positively charged nuclear particle?AEugen GoldsteinBJ.J. ThomsonCErnest RutherfordDRobert Millikan Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Orbitals#Atomic Structure412Choose the best answerWhat is the three-dimensional region around the nucleus where an electron is most likely to be found?AOrbitBShellCOrbitalDEnergy packet Like 0 Discuss 0Share
Atomic StructureShells and Subshells413Choose the best answerAn electron with principal quantum number n = 2 may occupy:AOnly an s-orbitalBOnly the orbital closest to the nucleusCEither an s- or p-orbitalDOnly a p-orbital Like 0 Discuss 0Share
Atomic StructureIsobars414Choose the best answerWhich pair represents isobars?A³₂He and ⁴₂HeB²⁴₁₂Mg and ²⁵₁₂MgC⁴⁰₁₉K and ⁴⁰₂₀CaD³⁹₁₉K and ⁴⁰₁₉K Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Quantum Theory415Choose the best answerIn Planck’s theory, the discrete packets of absorbed or emitted energy are called:AElectronsBQuantaCProtonsDNeutrons Like 0 Discuss 0Share