Chemical Bonding and Molecular Structure
11950
If the electronic configuration of \(M = 2,\,\,8,\,\,3\) and that of \(A = 2,\,\,8,\,\,7,\) the formula of the compound is
1 \({M_2}{A_3}\)
2 \(M{A_2}\)
3 \({M_2}A\)
4 \(M{A_3}\)
Explanation:
\(M\) belongs to \(III- A\) group and \(A\) belongs to \(V II -A\) group. thus a formuma is \(MA _3 \,\,e , g , AlCl _3\)