Atomic StructureEnergy of Electron in Bohr Orbit11Choose the best answerAccording to Bohr's model, the energy of an electron in the nth orbit of hydrogen is:AEₙ = −13.6/n⁴ eVBEₙ = −13.6/n³ eVCEₙ = −13.6/n² eVDEₙ = −13.6/n eV Like 0 Discuss 0Share
Atomic StructureSubatomic Particles12Choose the best answerThe number of types of nucleons present in an atomic nucleus is:AMore than 100B3C2D100 Like 0 Discuss 0Share
Atomic StructureHund's Rule13Choose the best answerThe ground-state arrangement that maximizes total electron spin in degenerate orbitals is governed by:AHeisenberg uncertainty principleBHund's ruleCAufbau principleDPauli exclusion principle Like 0 Discuss 0Share
Atomic StructureQuantum Numbers14Choose the best answerWhich set of quantum numbers is NOT allowed?An = 1, ℓ = 0, mℓ = 0, mₛ = +½Bn = 1, ℓ = 1, mℓ = 0, mₛ = −½Cn = 2, ℓ = 1, mℓ = +1, mₛ = +½Dn = 2, ℓ = 1, mℓ = 0, mₛ = −½ Like 0 Discuss 0Share
Atomic StructureValence Electrons15Choose the best answerAn atom has the electronic configuration: 1s² 2s² 2p⁶ 3s² 3p² How many valence electrons does it contain?A6B2C3D4 Like 0 Discuss 0Share