Recall the definition of a chemical element.
Question
Recall the definition of a chemical element.
Solution
A chemical element is a pure substance that cannot be broken down into simpler substances by chemical reactions. It is made up of atoms that all have the same number of protons in their nuclei, which is known as the atomic number. Examples of chemical elements include hydrogen, oxygen, carbon, and iron. Each element has unique properties and is represented by a unique symbol on the Periodic Table of Elements.
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