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9 August, 12:19

How many neutrons does element X have if its atomic number is 38 and its mass number is 92?

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Answers (1)
  1. 9 August, 13:14
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    The answer to your question is Neutrons = 54

    Step-by-step explanation:

    Data

    Number of neutrons = ?

    Atomic number = 38

    Mass number = 92

    Definition

    The Mass number is the number of protons + the number of neutrons

    The Atomic number is the number of protons in an atom

    Then, considering the previous definitions,

    Number of neutrons = Mass number - Atomic number

    - Substitution

    Number of neutrons = 92 - 38

    - Result

    = 54
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