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      Question

      An element has an atomic number of 17 and a mass number

      of 36. How many neutrons are in its nucleus?
      A 17 Correct Answer Incorrect Answer
      B 19 Correct Answer Incorrect Answer
      C 36 Correct Answer Incorrect Answer
      D 53 Correct Answer Incorrect Answer

      Solution

      The number of neutrons is calculated by subtracting the atomic number from the mass number: 36 - 17 = 19 neutrons.

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