rrodriguez6138 rrodriguez6138
  • 09-03-2018
  • Chemistry
contestada

If a neutral atom of beryllium has 4 protons and 5 neutrons, what is the mass number of the atom?

Respuesta :

adavis192
adavis192 adavis192
  • 09-03-2018
9 is the mass of the atom
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