Atomic StructureShapes of Atomic Orbitals136Choose the best answerWhen ℓ = 1, the orbital belongs to a:ANon-directional subshellBSpherically symmetrical s-subshellCp-subshell with dumbbell-shaped orbitalsDf-subshell Like 0 Discuss 0Share
Atomic StructureDegenerate Orbitals137Choose the best answerIn the absence of an external electric or magnetic field, which pair of orbitals is degenerate?A2s and 3sB3dxy and 3dxzC3s and 3pD3p and 4p Like 0 Discuss 0Share
Atomic StructureQuantum Numbers138Choose the best answerFor a 2p orbital, the correct values of n and ℓ are:An = 1, ℓ = 2Bn = 1, ℓ = 0Cn = 2, ℓ = 1Dn = 2, ℓ = 0 Like 0 Discuss 0Share
Atomic StructureIsoelectronic Species139Choose the best answerWhich set consists of isoelectronic species?ANa⁺, K⁺, Ca²⁺, Mg²⁺BCa²⁺, Mg²⁺, S²⁻, K⁺CCa²⁺, Ar, S²⁻, K⁺DNone of these Like 0 Discuss 0Share
Atomic StructureIsotopes140Choose the best answerThe isotope ¹⁸₈O contains:A18 protonsB9 protons and 9 neutronsC8 neutrons and no protonsD8 protons and 10 neutrons Like 0 Discuss 0Share