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28-09-2020
Biology

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The mass number of an atom is obtained by totaling the number of _____.

electrons and neutrons

protons and neutrons

protons and electrons

Respuesta :

28-09-2020

Answer:

The answer is Protons and neutrons.

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hatangan4068 hatangan4068

28-09-2020

Answer:

The number of an atom is obtained by totaling the number of protons and neutrons, to have an equivalent number of protons and neutrons.

Explanation:

Answer Link

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