Question

Question #ad2d9

Answer 1

An element is composed of atoms of the same sort.

Explanation:

Most elements are mono-atomic, i.e. they are loose atoms. Some elements form di-atomic molecules (still of the same sort), such as hydrogen, where the molecules consist of two hydrogen atoms (`H_2`), and some go even further than that (such as phosphorous `P_4`).

But still all atoms are the same.