How many electrons in sulphur `(Z = 16) ` can have n + l = 3 ?`

Explanation

The electronic condiguration of sulphur is `1 s ^(2) 2s ^(2) 2p ^(6) 3s ^(2) 3p ^(4)`
The subshells which have `n + l = 3 ` are `3s implies 3 + 0 = 3 `
` 2p implies 2 +1 = 3`
3s and 2p subshells have (n +1) value equal to 3
`therefore 3 s` subshell have =2 electrons
2p subshell have = 6 electrons
Total number of electrons =8 electrons