Atomic StructureQuantum Numbers196Choose the best answerWhich set of quantum numbers is impossible?An = 1, ℓ = 0, mℓ = 0, mₛ = +½Bn = 1, ℓ = 1, mℓ = +1, mₛ = +½Cn = 2, ℓ = 1, mℓ = −1, mₛ = +½Dn = 2, ℓ = 0, mℓ = 0, mₛ = −½ Like 0 Discuss 0Share
Atomic StructureSubatomic Particles197Choose the best answerThe nitride ion, N³⁻, in lithium nitride is composed of:A7 protons + 10 electronsB10 protons + 10 electronsC7 protons + 7 electronsD10 protons + 7 electrons Like 0 Discuss 0Share
Atomic StructureHund's Rule198Choose 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
Atomic StructureElectronic Configuration199Choose the best answerWhat is the correct ground-state electronic configuration of lithium, Z = 3?A1s¹ 2s²B1s² 2s¹C1s² 2s²D1s² 2p¹ Like 1 Discuss 0Share
Atomic StructurePhoton Energy and Wavelength200Choose the best answerRadiation of wavelength 8000 Å has energy E₁, while radiation of wavelength 16000 Å has energy E₂. Which relation is correct?AE₁ = 6E₂BE₁ = 2E₂CE₁ = 4E₂DE₁ = ½E₂ Like 0 Discuss 0Share