Question

which of the following is true? this is an element, because its made of more than one type of atom. this is an element, because its made of atoms. this is not an element, because its made of more than one type of atom. this is not an element, because its made of atoms.

Explanation:

An element is a pure substance made up of only one type of atom. If a substance is made of more than one type of atom, it is a compound or a mixture, not an element. All substances are made of atoms, but being made of atoms alone does not define an element.

Answer:

This is not an element, because it's made of more than one type of atom.