PLEASE HELP How can you tell there are particles with a negative charge within an atom. Include evidence and reasoning

That means an atom with a neutral charge is one where the number of electrons is equal to the atomic number. Ions are atoms with extra electrons or missing electrons. When you are missing an electron or two, you have a positive charge. When you have an extra electron or two, you have a negative charge.

Explanation:

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the answer would be 32*f