Question

a chemical compound has the following levels notation how many valence electron does element why have what is the valency of the element by what is the valency of element X how many covalent bonds are there in the molecules to which group the element x and y belong

Answer 1

Hi,

This your question seems to be incomplete therefore you should consider adding some details to the question since even though you have given good details of the compound but the stem of the question is lacking.

So consider adding this information.

But still in order to get the valency electrons all that you need to do is to first write down the ions that lead to the formation of the given compound,.

From there you will be able to get the valency electron.