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26 October, 10:15

An atom of calcium has 20 protons. How many electrons does it have?

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Answers (2)
  1. 26 October, 10:36
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    In any atom of element, the number of proton is equal to the number of electrons.

    Hence atom of calcium having 20 protons also have 20 electrons.
  2. 26 October, 10:44
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    In any atom of element, the number of proton is equal to the number of electrons.
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