Dakis
Dakis Dakis
  • 06-11-2020
  • Chemistry
contestada

What makes up an isotope’s mass number?
A.) The number of protons and neutrons
B.) The number of protons, neutrons, and electrons
C.) The number of stable isotopes of an element

Respuesta :

DachiSiracha
DachiSiracha DachiSiracha
  • 06-11-2020

Answer:

A

Explanation:

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