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A material is made up of atoms of only one kind. What is that material?
AA compound
BA solution
CA mixture
DAn element
Answer & Solution
Correct answer: D. An element
1. A piece of copper contains copper atoms and nothing else.
2. A material made of only one kind of atom is called an element.
3. A compound needs two or more kinds of atom bonded in a fixed ratio.
_Source: Siyavula Natural Sciences Grade 8 (CC BY 4.0), Elements_