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Science
Chemistry
Foundations of Chemistry
Introduction to Chemistry Concepts and Terms
What Is an Element? — Definition & Overview

Practice problem

What Is an Element? — Definition & Overview

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A deuterium atom contains one proton, one neutron, and one electron. Is it its own element?

Choose one answer

Option A: A

Yes, because it's a type of atom with a set amount of protons.

Option B: B

Yes, because it's a synonym for hydrogen.

Option C: C

No, because it is an isotope of hydrogen.

Option D: D

No, because it doesn't contain the same number of electrons as protons and neutrons put together.

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