Valence electronic configuration of carbon family is

The general electronic configuration of carbon is $1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^2$. In the outermost orbit of carbon (n=2) four electrons are present. Therefore, the valence electronic configuration of carbon is ${\mathrm{ns}}^2{\mathrm{np}}^2$