LaaQuell
LaaQuell LaaQuell
  • 10-12-2016
  • Chemistry
contestada

if an atom has a mass of 15 and an atomic number of 9. How many neutrons are in the atoms?

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Mcawesom
Mcawesom Mcawesom
  • 10-12-2016
number of neutrons = mass number - atomic number
                                  = 15 - 9
                                  = 6
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Аноним Аноним
  • 10-12-2016
mass= protons + neutrons
15-9=6
6 neutrons
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