Atomic StructureMasses of Subatomic Particles1Choose the best answerThe approximate masses of one mole of protons and one mole of electrons are respectively:A6.022 × 10²³ g and 1 gB1.008 g and 0.55 mgC9.1 × 10⁻²⁸ kg and 1.008 gD2 g and 1 g Like 1 Discuss 0Share
Atomic StructureIsoelectronic Species2Choose the best answerAmong the following, isoelectronic species are:ACO₂, NO₂BNO₂⁻, CO₂CCN⁻, CODSO₂, CO₂ Like 0 Discuss 0Share
Atomic StructureExceptional Electronic Configurations3Choose the best answerThe electronic configuration: [Ar] 3d⁵ 4s¹ represents the ground state of:AMnBCrCFeDCo Like 0 Discuss 0Share
Atomic StructurePauli Exclusion Principle4Choose the best answerAccording to Pauli's exclusion principle:AAll electrons in an atom have identical quantum numbersBNo two electrons in an atom can have the same set of all four quantum numbersCElectrons always occupy higher-energy orbitals firstDAll electrons in a subshell must have parallel spins Like 0 Discuss 0Share
Atomic StructureAufbau Principle5Choose the best answerAccording to the Aufbau principle, the highest-energy orbital is generally filled:AImmediatelyBLastCInitiallyDBefore lower-energy orbitals Like 0 Discuss 0Share