Question

give an example of elements for valencies 0 to 4​

Answer 1

Answer:

Helium-0, Hydrogen-1, Beryllium-2, Nitrogen-3, Carbon-4

Answer 2

Answer:

All the noble gases have valency 0.....for eg: argon, krypton, zenon,helium etc.

monovalent atoms have valency 1 ,for eg:potassium, chlorine , flurine etc...

For valency 2 .....eg: zinc , magnesium, calcium etc...

For valency 3....eg: aluminium etc

And for valency 4.....eg: carbon etc...

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