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zheka24 [161]
3 years ago
13

16) The mass number of an element whose atoms have 12 protons and 13 neutrons is_

Chemistry
1 answer:
Bess [88]3 years ago
6 0
The answer is c) 25 because the mass number is the # of protons and neutrons in the nucleus, therefor, 12 + 13 = 25
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