Worksheet: Hund's Rules
In this worksheet, we will practice using Hund's rules to predict the electron configurations of atoms and favored spin and momentum quantum numbers.
The electronic ground state of a multielectron atom is determined by applying Hund’s rules:
- The state with the largest total orbital angular momentum has the lowest energy.
- The state with the maximum multiplicity has the lowest energy.
- If the outermost subshell is half-filled or less, the state with the lowest total angular momentum has the lowest energy.
In which order are these rules applied?
- A1, 2, 3
- B2, 3, 1
- C1, 3, 2
- D2, 1, 3
- E3, 2, 1