Question

what will the valency of sulphur 2 and sulphur 3

Answer 1

sulphet2 14 supper 3 19

Answer 2

The atomic no of sulphur is 16. Hence it's electronic configuration would be [Ne] 3s2 3p4. It needs two more electrons to complete it's octet and hence achieve stability ( from the octet rule). So the valency or the ‘combining capacity’ of the sulphur comes out to be (-2)