Help with finding the amount of protons, electrons and neutrons?

Update: I have this word problem: Consider a hypothetical case in which the charge on a proton is twice that of an electron. Using this hypothetical case, and the fact that atoms maintain a charge of 0, how many protons, neutrons, and electrons would a hydrogen-2 atom contain? I don't understand how can I know the... show more I have this word problem:
Consider a hypothetical case in which the charge on a proton is twice that of an electron. Using this hypothetical case, and the fact that atoms maintain a charge of 0, how many protons, neutrons, and electrons would a hydrogen-2 atom contain?

I don't understand how can I know the amount of protons, electrons and neutrons. don't give me just the answer please explain it.
thank you
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