21master 21master

03-02-2021
Physics

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Which of the following elements has a mass number of 19 and contains 10 neutrons?
A. potassium (K)
B. neon (Ne)
O c. fluorine (F)
D. copper (Cu)

Respuesta :

messiah13carmelo messiah13carmelo

03-02-2021

D cause I took the test

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