Question

Matter that is made of only one kind of atom is called what?

Answer 1

An element .

Atoms are the building blocks of all matter. When a substance contains only one type of atom, it is called an element.

Answer 2

Answer:

Element

Explanation:

All matter is made up of very small particles called atoms. Atoms are the building blocks of all matter. When a substance contains only one type of atom, it is called an element. ... An element is a pure substance and is made of only one type of atom; it cannot be broken down into a simpler substance.