MCQ
If $n = 6,$ the correct sequence for filling of electrons will be
- ✓$ns \rightarrow (n - 2)f \rightarrow (n - 1)d \rightarrow np$
- B$ns \rightarrow (n - 1)d \rightarrow (n - 2)f \rightarrow np$
- C$ns \rightarrow (n - 2)f \rightarrow np \rightarrow (n - 1)d$
- D$ns \rightarrow np(n - 1)d \rightarrow (n - 2)f$
