riverasierra703
riverasierra703 riverasierra703
  • 23-10-2017
  • Physics
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An atom with 4 protons, 5 neutrons, and 4 electrons has an atomic mass of _____ amu. (Enter a whole number.)

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ejelonubenedict
ejelonubenedict ejelonubenedict
  • 23-10-2017
atomic mass = number of protons + number of neutrons = 4+5 = 9 amu
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