Atomic StructureAufbau Principle131Choose the best answerAfter the 3d subshell becomes completely filled during the Aufbau sequence, the next electron enters:A4pB4fC4sD4d Like 0 Discuss 0Share
Stoichiometry#Atomic Structure#Isotopes132Choose the best answerWhich statement about relative atomic mass is correct?AA ratio and unitlessBBased on carbon-12CAn average value for naturally occurring isotopesDAll of these Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Orbitals#Atomic Structure133Choose the best answerWhat is the shape of an s orbital?ADumb-bellBSphericalCDouble dumb-bellDTetrahedral Like 0 Discuss 0Share
Atomic StructureQuantum Numbers134Choose the best answerWhich set of quantum numbers is NOT allowed?An = 1, ℓ = 2, mℓ = 0, mₛ = +½Bn = 3, ℓ = 2, mℓ = +1, mₛ = +½Cn = 3, ℓ = 0, mℓ = 0, mₛ = −½Dn = 3, ℓ = 2, mℓ = +2, mₛ = +½ Like 0 Discuss 0Share
Atomic StructureShapes of d-Orbitals135Choose the best answerWhich of the following d-orbitals differs in shape from the other four?AdxyBdx²−y²CdyzDdz² Like 0 Discuss 0Share