Question

Find out the valency of following elecents tale the answer of sulphur and bromine ​

Answer 1

Sulphur has atomic number is 16

Hence its electronic configuration is 2,8,6

Since it needs 2e- to gain noble gas configuration its valency will be 2

Bromine is present in the group 17 its outer shell only needs 1e- to gain noble gas configuration

Hence its valency will be 1

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