Assign the position of the element having outer electronic configuration  a.`ns^(2)np^(4)` for `n=3
Channel: Doubtnut
Date: 2020-07-26

Assign the position of the element having outer electronic configuration  a.`ns^(2)np^(4)` for `n=3`  b. `(n-1)d^(2)ns^2` for `n=4` and  c. `(n-2)_(f)^(7)(n-1)d^(1)ns^(2)` for `n=6`, in the periodic table.