Question

By using the above informations define the electronic configuration of $S$ atom.

• A. $1s^{2}2s^{2}2p^{6}3s^{2}3p^4$
• B. $1s^{2}1p^6{d}^{6}2s^2$
• C. $1s^{2}1p^{6}1d^{10}$
• D. $1s^{2}1p^{6}2p^{6}2d^2$

Answer 1

The correct option is B $1s^{2}1p^6{d}^{6}2s^2$

The atomic number of sulphur is 16. Its electronic configuration is $2,8,6$ or $1s^{2}1p^6{d}^{6}2s^2$.
Here, $n=1,2,3$ corresponds to first, second and third energy levels respectively.
$l=0,1,2$ corresponds to s, p and d orbitals respectively.