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15 October, 11:48

phosphorus has an atomic mass of 31 and an atomic number of 15, so the number of nuetrons must be?

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Answers (2)
  1. 15 October, 13:27
    0
    The number of neutrons is the difference in Atomic mass and atomic number.

    Thus, number of neutrons:

    31 - 15

    = 16 neutrons
  2. 15 October, 14:15
    0
    It should be 16 neutrons
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