rosalopez0703 rosalopez0703
  • 20-10-2020
  • Chemistry
contestada

Mass number is equal to
(10 Points)
O neutrons and electrons
o electrons and protons
O protons and nucleus
protons and neutrons

Respuesta :

jasbby59
jasbby59 jasbby59
  • 20-10-2020
The answer : protons and neutrons







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