Question

which one of the following configuration is not possible.?

(A) is², 28²,2p⁵
(b) is²,2s²,2p⁶
(c) is²,2s²,2p⁷
(d) is²,2s²​

Answer 1

3 rd option is wrong as p can maximum attain only 6 electron in ti not more than 6.

Answer 2

Answer:

Right answer is option (c)

Explanation:

$1 {s}^{2} 2 {s}^{2} 2 {p}^{7} \: is \: not \: possible.$