All Problems

Properties of Atoms. Spectra.

Problem 6.120

Using the Hund rules, find the total angular momentum of the atom in the ground state whose partially filled subshell contains (a) three \(d\) electrons; (b) seven \(d\) electrons.

Reveal Answer
 (a) 4F3/2,15/2; (b) 4F9/2,311/2\text { (a) }{ }^{4} F_{3 / 2}, \hbar \sqrt{15} / 2 ; \text { (b) }{ }^{4} F_{9 / 2}, \hbar 3 \sqrt{11} / 2