how to know the valancy of atom
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See the last shell,if it is more than 4 then subtract it from 8 and if it is less than 4,then subtract it from 0(excluding the minus sign)
PLS MARK AS BRAINLIEST........
PLS MARK AS BRAINLIEST........
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by writing first electronic configuration
then using 2 n² formula for holding electrons in successive shells
the last remaining electrons are valence electrons that take part in chemical bonding
e. g Corbon
at no = 6
so 2, 4
first are stable but last 4 electrons need more four electrons to complete it's octet level.
so valency is 4
hope u got it
then using 2 n² formula for holding electrons in successive shells
the last remaining electrons are valence electrons that take part in chemical bonding
e. g Corbon
at no = 6
so 2, 4
first are stable but last 4 electrons need more four electrons to complete it's octet level.
so valency is 4
hope u got it
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