Statistical weight
= Statistical weight
{title2=$g=2J+1$}
The number of <quantum states> assigned to an <energy> level or grouped spectroscopic level. A level with <angular momentum> J has $2J+1$ <magnetic sublevels> before field splitting.
= Statistical weight
{title2=$g=2J+1$}
The number of <quantum states> assigned to an <energy> level or grouped spectroscopic level. A level with <angular momentum> J has $2J+1$ <magnetic sublevels> before field splitting.