A chemical compound has the following Lewis notation:

What is the valency of element X?

A chemical compound has the following Lewis notation: What is the valency of element Y?

Which chemical compound has the following Lewis notation : What is the valency of element X ?

A Chemical compound has the following Lewis notation : What is the valency of element Y ?

A chemical compound has the following Lewis notation: Suggest a name for the elements X and Y.

A Chemical compound has the following Lewis notation : To which groups the elements X and Y belong ? (AS_2)

A chemical compound has the following Lewis notation: How many valence electrons does element Y have?

Which chemical compound has the following Lewis notation : How many valence electrons does element Y have?

A chemical compound has the following Lewis notation: How many covalent bonds are there in the molecule?

Which chemical compound has the following Lewis notation : How many covalent bonds are there in the molecule ?

What is the valency of an element with Z= 15 ?