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Sophie [7]
3 years ago
13

Potassium has a mass number of 40 and an atomic number of 19. how many protons does it have?

Chemistry
1 answer:
ratelena [41]3 years ago
6 0
19. The atomic number is the same as protons and electrons unless it have a - or a + charge the electrons are going to change
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Exact Form:
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