Atomic StructureShells and Subshells126Choose 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 StructureLimitations of Bohr's Atomic Model127Choose the best answerBohr's model cannot successfully explain:AHydrogen line spectrumBSpectrum of He⁺CSpectrum of Li²⁺DFine structure of spectral lines Like 0 Discuss 0Share
Atomic StructureAtomic Number and Mass Number128Choose the best answerThe nucleus of ⁴⁵₂₁E contains:A45 protons and 21 neutronsB21 protons and 24 neutronsC21 protons and 45 neutronsD24 protons and 21 neutrons Like 0 Discuss 0Share
Atomic StructureRutherford's Atomic Model129Choose the best answerRutherford's α-particle scattering experiment provided information about the:ASmall size of the nucleusBExact size of an electronCNumber of neutronsDElectron spin Like 0 Discuss 0Share
Atomic StructureBohr's Atomic Model130Choose the best answerAccording to Bohr's model, when an electron revolves in a stationary orbit:AIt continuously absorbs energyBIts kinetic energy continuously increasesCIt continuously emits radiationDIts total energy remains constant Like 0 Discuss 0Share