Question

please explain,
if we are to make the formula of magnesium nitride it is Mg3N2,
but if we are to do this by criss cross method
the valency of mg is 2
the valency of N2 is 3
the formula becomes Mg3(N2)2

explain how​

Answer 1

Answer:

$it \: is \:for\: nitrogen \: atom \:$

$you \: did \: it \: for \: nitrogen \: molecule$

Answer 2

ok u did it for nitrogen molecule its nitrogen atom