If the electronic configuration of elements A' and B' are $$1s^{2}, 2s^{2} 2p^{6}, 3s^{1} $$ and $$1s^{2}, 2s^{2} 2p^{6}, 3s^{2}3p^{4} $$, respectively, then the formula of the compound forced by the combination of these elements will be:Â
The correct option is C.
The valency of element A is $$1^{+}$$ And valency of element is $$2^{-}$$
So they combined and form compound $$A_{2}B$$
Create a FREE account and get:
