samuelmonk samuelmonk
  • 23-05-2022
  • Chemistry
contestada

What is the mass number of an isotope with an atomic number of 57 and that has 69 neutrons?

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Respuesta :

glowinglion glowinglion
  • 23-05-2022

Answer:

mass number=126

Explanation:

57+69=126

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