Why is it important to have the correct atomic number when identifying an atom/element?

The number of protons in an atom is called its atomic number. This number is very important because it is unique for atoms of a given element. All atoms of an element have the same number of protons, and every element has a different number of protons in its atoms.

Explanation:

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i think it is true since you can test the answer and can use observations to complete it.