Which group would Ns2np2 go into

The group 15 elements: the pnicogens

Explanation:

The group 15 elements, nitrogen, phosphorus, arsenic, antimony and bismuth, all have the general valence shell electronic configuration ns2np3. They can all exist in the + 3 or + 5 oxidation state, with the + 3 state increasing in stability as we move vertically down the group.