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2 April, 11:54

The nucleus of which atom contains 48 neutrons

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  1. 2 April, 12:10
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    To find the number of electrons, you have to subtract the atomic number to the atomic weight,

    the mass of Rb is 85, the atomic number is 37. so the number of neutrons is 85 - 37 = 48
  2. 2 April, 12:16
    0
    The answer would be Rb-85.
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