Explanation:
General electronic configuration for the given groups are as follows.
For 4A(14) : [tex]ns^{2}np^{4}[/tex]
This means that there are 4 unpaired electrons in group 4A(14).
For 7A(17) : [tex]ns^{2}np^{5}[/tex]
So, there are 7 unpaired electrons present in group 7A(17).
For 1A(1) : [tex]ns^{1}[/tex]
Hence, there is only one unpaired electron present in group 1A(1).
For 6A(16) : [tex]ns^{2}np^{4}[/tex]
So, there are 6 unpaired electrons present in group 6A(16).
