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8 May, 05:00

Siven an element's atomic number and mass number, how can you tell the number of protons and neutrons in its nucleus?

Jumber of protons = atomic number; number of neutrons = mass number - atomic number

Number of protons = atomic number; number of neutrons = mass number + atomic number

Number of protons = mass number; number of neutrons = atomic number - mass number

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Answers (2)
  1. 8 May, 05:21
    0
    It would be the first option.

    Explanation-

    The number of protons is equal to the atomic number the number of neutrons is the mass minus the atomic number.
  2. 8 May, 05:26
    0
    Number of protons = atomic number; number of neutrons = mass number - atomic number

    Explanation:

    Z = atomic number = number of protons

    A = mass number = number of protons + number of neutrons

    Mass number = atomic number + number of neutrons

    Number of neutrons = mass number - atomic number
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