Question

What is the relationship between diatomic molecules and diatomic elements? Name One example of a diatomic element.

Answer 1

Answer:

Diatomic molecules are molecules made of two atoms. The atoms can be of the same element (diatomic elements) like in H2, N2, and O2, or of different elements (diatomic compounds) like in HCl, NaCl, and KBr.  

In contrast, monatomic elements consist of single atoms, like Ar, He and Ne.

Answer 2

Answer: Diatomic elements are a subgroup of diatomic molecules.

Explanation:

Every molecule that consists of two atoms is diatomic. Only if the two atoms are the same there is a diatomic element.

So O2 is a diatomic element (and thus a diatomic molecule)
HCl is a diatomic molecule, but not a diatomic element.

One example of diatomic is earth's atmosphere is a host to a few different diatomic molecules, including nitrogen (N2) and oxygen (O2, not to be confused with ozone, which is O3).

Hopes this helps you!