princessbethany15 princessbethany15

26-01-2021
Chemistry

contestada

A. Neutrons and electrons
B. Protons and electrons
C. Electrons in energy levels
D. Protons and neutrons

A Neutrons and electrons B Protons and electrons C Electrons in energy levels D Protons and neutrons class=

Respuesta :

johnsonhood44 johnsonhood44

26-01-2021

Answer:

D.

Explanation:

Because protons and neutrons make up the mass of an atom.

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