How is the valency of an element determined if the number of electrons in the outermost shell is close to its full capacity?
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JUST SUBTRACT THE NUMBER OF ELECTRONS FROM 8 U WILL GET
ONLY IF THE NMBER IS GREATER THAN 4
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Explanation:
When the number of electrons in the outermost shell of an atom is close to its full capacity, i.e., 5, 6 or 7 then the valency is equal to the number of electrons by adding which the shell may become complete or 8 minus valence electrons.
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