a substance made up of just one
type of atom​


Sagot :

When a substance contains only one type of atom, it is called an element.

Answer:

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.

Explanation:i hope its help T__T