Chemistry
Chemistry, 14.07.2019 22:40, hjukhvfd5723

How many neutrons are in the radioactive isotope 40/19? a. 40 b. 19 c. 21 d. 20

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How many neutrons are in the radioactive isotope 40/19? a. 40 b. 19 c. 21 d. 20...

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