Discribe how a neutral atom changes when the number of protons, neutrons, or electrons change

Depends on what you are changing.

Explanation:

Protons have a positive (+) charge.

Neutrons have a neutral (0) charge.

Electrons have a negative (-) charge.

Since neutrons only affect atomic mass, we don't need to worry about it changing the charge.

If we had more protons than electrons, then since there are more + charges, the entire atom would be positively charged.

If we had more electrons than protons, then since there are more - charges, the entire atom would be negatively charged.

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substitution is the answer in this case