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24-05-2016
Chemistry

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stable isotopes usually have a number of protons and a number of neutrons

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18murraym 18murraym

24-05-2016

The number of protons is equal to their atomic number ever time.
For example: Carbon always has 6 protons
And the number of neutrons depends on whether it is Carbon 12 or 13 or 14 etc.

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