Atomic StructureAufbau Principle216Choose the best answerWhich electronic configuration correctly follows the Aufbau filling order?A1s² 2s² 2p⁶B1s² 3p³ 3s²C1s² 3s² 3p⁶D1s² 2s² 3s² Like 0 Discuss 0Share
Atomic StructureElectronic Configuration217Choose the best answerWhat is the correct ground-state electronic configuration of lithium, Z = 3?A1s¹ 2s²B1s² 2s¹C1s² 2s²D1s² 2p¹ Like 0 Discuss 0Share
Atomic Structuren + ℓ Rule and Allowed Subshells218Choose the best answerIf n + ℓ = 6, how many valid subshells are possible?A3B4C2D5 Like 0 Discuss 0Share
Atomic StructureIsotopes219Choose the best answerWhich statement is not true for isotopes of the same element?AThey have the same number of neutronsBThey have the same mass numberCThey have identical physical propertiesDAll of these Like 0 Discuss 0Share
Atomic StructureHund's Rule220Choose the best answerWhich statement describes Hund's rule rather than Pauli's exclusion principle?AAn orbital can contain a maximum of two electronsBPaired electrons in one orbital have opposite spinsCDegenerate orbitals are singly occupied before pairingDNo two electrons have identical sets of four quantum numbers Like 0 Discuss 0Share