tpost25 tpost25

12-12-2020
Biology

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Where is most of the mass an a atom

Respuesta :

Аноним Аноним

12-12-2020

Explanation:

nucleus

Over 99.9 percent of an atom's mass resides in the nucleus. The protons and neutrons in the center of the atom are about 2,000 times heavier than the electrons orbiting around it.

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