Question
How many electrons will be present in the sub-shells having ms value of - 1/2 for n =4 ?
Solution
The number of orbitals in 4th shell = n2 - 42 = 16 Since each orbital can accommodate a maximum of two electrons with opposite spin, therefore each orbital has one electron with ms = - 1/2 .
Hence there will be 16 electrons with ms = - 1/2 .
