walkercasey84 walkercasey84

13-06-2017
Chemistry

contestada

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

Respuesta :

13-06-2017

the answer is 19
i know that

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mjd0623 mjd0623

28-11-2018

The answer to tis question is 19

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