Chemical Bonding And Molecular Structure

The electronic configuration of X and Y are given below:

$$ \begin{aligned} & X: 1 s^2 2 s^2 2 p^6 3 s^2 3 p^3 \\ & Y: 1 s^2 2 s^2 2 p^6 3 s^2 3 p^5 \end{aligned} $$

Which of the following is the correct molecular formula and type of bond formed between X and Y ?