How can u calculate valency of iron by klmn shells
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all octaact is full
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Number of electrons in last shell is the valency of an element.
Iron atomic number is 26
K- 2
L-8
M-8
N- 8
As we know that iron is not an inert gas.
It is a metal.
Therefore , we cannnot determine iron's valency by K, L , M , N shells.
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