Question

Number of unpaired electrons in sulphur is:

• A. 2
• B. 6
• C. 8
• D. 1

Answer 1

Answer: (A)

2

Atomic number of $S=16$
${}_{16}S=1s^2,2s^2,2p^6,3s^2,3p^4$

It has 4 electrons in outer most p-orbital. One p-orbital is fulfilled and two orbitals are half-filled.

$\therefore$ It has 2 unpaired electrons.