Atomic StructureHund's Rule126Choose the best answerWhich arrangement of two electrons in three degenerate p-orbitals obeys Hund's rule?Apₓ² pᵧ⁰ pz⁰Bpₓ¹(↑) pᵧ¹(↓) pz⁰Cpₓ¹(↑) pᵧ¹(↑) pz⁰Dpₓ² pᵧ¹ pz⁰ Like 0 Discuss 0Share
Atomic StructureHeisenberg Uncertainty Principle127Choose the best answerIn Heisenberg's uncertainty relation: Δx × Δp ≥ h/4π Δp represents:AUncertainty in energyBUncertainty in velocityCUncertainty in momentumDUncertainty in mass Like 0 Discuss 0Share
Atomic StructureIsotopes128Choose the best answerWhich quantity is the same for all isotopes of a given element?ANumber of protonsBNumber of neutronsCTotal number of nucleonsDMass number Like 0 Discuss 0Share
Atomic StructureBohr Radius129Choose the best answerThe radius of the first Bohr orbit of hydrogen is 0.53 Å. What is the radius of its third Bohr orbit?A0.79 ÅB1.59 ÅC3.18 ÅD4.77 Å Like 0 Discuss 0Share
Atomic StructureNodes in Atomic Orbitals130Choose the best answerA 3p orbital has:ATwo angular nodesBTwo radial nodesCOne radial node and one angular nodeDTwo radial nodes and one angular node Like 0 Discuss 0Share