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How many protons are in the radioactive isotope 40/19 K ? 40 19 21 20

How many protons are in the radioactive isotope 40/19 K ? 40 19 21 20
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How many protons are in the radioactive isotope 40/19 K ? 40 19 21 20

User Gadde
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5 votes

The answer to tis question is 19


User Cfun
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7 votes
the answer is 19
i know that
User Shrewdu
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