Chemistry, asked by shreeeeeeeya8154, 1 year ago

Elements of group 1 and group 17 have both valency 1. Why?l

Answers

Answered by tanishqsingh
11
Group 1 elements have only one electron in their outermost shell. So they lose or share one electron to form bond and gain stability like a noble gas.
Group 17 elements have 7 electrons in their outermost shell. They gain an electron or share one electron and become stable.
Hence both the set of elements have valency 1
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