Question

select the correct answer. which of the following states that an orbital can contain two electrons only if all other orbitals at that sublevel contain at least one electron? a. archimedes principle b. aufbau principle c. hunds rule d. pauli exclusion principle e. le chateliers principle

Explanation:

Hund's rule states that electrons will first singly occupy orbitals of the same energy (degenerate orbitals) before pairing up. That is, an orbital can contain two electrons only if all other orbitals at that sublevel contain at least one electron. Archimedes' principle is related to buoyancy, the Aufbau principle deals with the order of filling orbitals, the Pauli - exclusion principle states that no two electrons in an atom can have the same set of four quantum numbers, and Le Chatelier's principle is about chemical equilibrium shifts.

Answer:

C. Hund's rule