lystarmer lystarmer
  • 18-01-2016
  • Chemistry
contestada

which two particles in an atom are equal in mass

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anonymous1947 anonymous1947
  • 18-01-2016
protons and neutrons.

Note: They probably are ABOUT the same mass. Don't think they are exactly the same.

Hope this helps! 
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Аноним Аноним
  • 18-01-2016
Protons and Neutrons. 
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