Which is a substance that is made up of only one type of atom?
compound
element
solution
mixture

Element

Explanation:

Hello! The substance that is made by the same type of atoms is the element.

The element is a simple substance that cannot be decomposed by chemical means, formed by the same atom.

The compounds are a union of two or more different chemical elements.

The mixture is the physical union of two or more elements or compounds. Each part maintains its individual properties.

The solution is a homogeneous mixture of two or more substances. It is formed by solute and solvent.

answer; natural resources;