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Elements with valency 1 are...

Elements with valency 1 are

A

always metals

B

always metalloids

C

either metals or non-metals

D

always non-metals

Text Solution

Verified by Experts

The correct Answer is:
C
Metals and non-metals both can have valency 1.
Metals which have 1 valence electron and non-metals which have 7 valence electrons, have valency 1. It is because, metals loose their `1e^(-)` and non-metals gain `1e^(-)` to complete their octet.
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