Question

a substance that contains only one type of atoms is called and _______

1) Proton
2) Electron
3) Matter
4)Element​

Answer 1

Explanation:

A chemical element is a substance that is made up of only one type of atom, which is the smallest particle of an element. Atoms are made up of protons, neutrons, and electrons. The number of protons in an atom is called the atomic number.

Answer 2

Answer:

4. Element

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