Question

calculate the valency of sulphur and chlorine​

Answer 1

Answer:

Sulphur has = 6 valence electrons. thus, its valency is 8-6=2 .hence, the valency of sulphur is 2. in the same way, the electronic configuration of chlorine is 2,8,7.

Answer 2

Answer:

First, find the Electronic configurations of the Elements to find the valency.

Explanation:

Sulphur has 16 as atomic number

Electronic configuration: 2, 8, 6

We have 6 as valence electron not valency.    If last electron is more than 5, then we need to subtract it from 8.

So 8-6= 2 is the valency of Sulphur.

Chlorine has 17 as atomic number

Electronic configuration: 2. 8, 7

7 as valence electron not valency.

Valency: 8-7= 1 as valency for Chlorine.

Hope it helps