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  • 19-05-2017
  • Chemistry
contestada

What is the mass of an atom that has 4 protons, 5 neutrons, and 4 electrons?

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leha8291
leha8291 leha8291
  • 19-05-2017
the answer would be 9
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Tuniss
Tuniss Tuniss
  • 19-05-2017
To get the mass, you would add the  4 protons and 5 neutrons so it would be 9. 
(The electrons weigh practically nothing so you just ignore them.)
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