Answer:
Element
Step-by-step 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.