Question

How to calculate valency of iron and zinc by atomic shell method

Answer 1

For Iron this method will not apply .

Oxidation state depends on the valecy electrons and the valecy electrons are electrons present in the outer most layer of an atom.

For , Fe, n=4 N shell

i.e iron has valecy of 2.

Zinc: For Zinc , we will do 2+8=10

10+18=28

And the remaining electron , it will give to some body else

So valecy of Zinc is 2