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22 September, 15:18

How many neutrons are in an atom

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Answers (2)
  1. 22 September, 15:37
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    It depends on the number of protons and the atomic mass. In order to find the number of neutrons, subtract the number of protons from the atomic mass and there's your answer.
  2. 22 September, 15:40
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    That number is different in the atoms of almost every element,

    and it's also different in the atoms of different isotopes of the

    same element.

    - - An atom of Hydrogen has no neutrons.

    - - An atom of Uranium-235 has 142 neutrons in its nucleus.

    - - An atom of Uranium-238 has 145 neutrons in its nucleus.
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