Question

Which is made up of only one type of atom?

A.a solution
B.a homogeneous mixture
C.an element
D.a compound

Answer 1

C - an element is only a single material so it is the option made of only once type of atom

Answer 2

C. an element

Step-by-step explanation:

Elements are pure substances and made up of only one type of atoms which cannot be further broken down.