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Kierra Salas
Chemistry
1 February, 15:04
How many neutrons does potassium have? 2 19 20 39
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Paulina Sharp
1 February, 15:08
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The number of neutrons is determined from the difference of the atomic weight and atomic number. The atomic weight is 39 while the atomic number is 19. Thus, the number of neutrons is 20.
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