Question

which have zero valency and examples

Answer 1

annyeong!

Group 18 of modern periodic table has zero valency.

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Answer 2

ANNYEONG HASAYO

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All of the elements, in the elemental state, have a valency or oxidation number of zero. All the inert elements namely, Helium, Neon, Argon, Krypton have zero valency, except xenon and radon.

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