Top topic this week
Questions asked by users might not always be phrased in the clearest way.
The ground state free ion term symbol of 4F indicates a total spin angular momentum (S) of 3/2 and a total orbital angular momentum (L) of 3. To calculate the number of microstates, we use the formula (2S+1)(2L+1). In this case, the number of microstates is (2(3/2)+1)(2(3)+1) = 4 x 7 = 28.