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The atomic number of an element is determined by what?
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The atomic number of an element is determined by what?

User John Prior
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Answer:

Protons.

Step-by-step explanation:

The atomic number of an element is determined by the number of Protons.

User Benjamin Bannier
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Answer:

An element's atomic number is equal to the number of protons in the nuclei of any of its atoms. The mass number of an atom is the sum of the protons and neutrons in the atom.

Hope this helps! <3

User RHelp
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