battoc2vivianjone
battoc2vivianjone battoc2vivianjone
  • 15-10-2016
  • Biology
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How many protons and electrons does calcium ion have?

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Moonnose
Moonnose Moonnose
  • 28-10-2016
A calcium ion has 20 protons. A calcium atom loses two electrons to become an ion. This means the ion has 18 electrons.
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