Question

what is the smallest part of a compound called?
element
atom
mixture
molecule

Explanation:

A compound is made up of two or more different - elements chemically combined. The smallest part of a compound that still has the properties of that compound is a molecule. An element is a pure substance made of only one type of atom. An atom is the smallest part of an element. A mixture is a combination of two or more substances that are not chemically combined.

Answer:

D. molecule