Question

Which of the following is a substance made up of only one type of atom?

Answer 1

A pure substance is something that occurs in nature. An element is made up of one type of atom only and cannot be split further. A compound has the combined properties of the elements from which it is made. Atoms show the macro properties of an element.

Answer 2

element

Step-by-step explanation:

also you stole that answer off some other guy