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Ответ:
Ответ:
Ответ:
Protons and Neutrons have approximately the same mass.
Equal numbers of protons and electrons make an atom neutral.
Protons have a positive charge
Explanation:
Protons and Neutrons have approximately the same mass. - both are 1 amu
Equal numbers of protons and electrons make an atom neutral. - protons are +1 and electrons are -1, so they cancel each other if there are equal amounts.
Protons have a positive charge - this is true.