What is the valency of the element?

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Answer 1 · 2017-08-09T08:13:33

This is formally the number of hydrogen atoms to which an element will bind.

#"Valency"# is an old-fashioned term, and nowadays it is more common to speak of #"oxidation state and oxidation number"#.

Given the definition, the valency of carbon is four; that of nitrogen and boron, three; that of the halogens, one........

Answer 2 · 2017-08-09T10:31:12

See Explanation.

Valency of an element is the number of electrons in the outermost shell of the element.