jhendrix002 jhendrix002
  • 10-03-2021
  • Chemistry
contestada

what is the mass number of an atom which contains 21 electrons,21 protons and 24 neutrons

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FoxSinOfGreedBan
FoxSinOfGreedBan FoxSinOfGreedBan
  • 12-03-2021

Answer:

The atomic mass number is 45.

Hope this helps

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