In this worksheet, we will practice using Hund's rules to predict the electron configurations of atoms and favored spin and momentum quantum numbers.
One of the p orbitals of an unknown element is half filled. Assuming that Hund’s rule is upheld, which of the following elements could not be the unknown element?
The following term symbols correspond to the ground electronic state of atomic carbon, . Use Hund’s rule to predict which of these levels is lowest in energy.
- A 3P2
- B 1S0
- C 1D2
- D 3P0
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, 3, 2
- B1, 2, 3
- C2, 3, 1
- D2, 1, 3
- E3, 2, 1