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maw [93]
3 years ago
10

The sum of the protons and neutrons in an atom equals the ____. *

Chemistry
1 answer:
Anna11 [10]3 years ago
8 0

Answer:

The sum of the number of protons and neutrons in an atom is called the mass number.

Explanation:

Carbon-12 has 12 protons and 12 neutrons. 12+12=24 , so the mass number of C-12 is 24..

Hope it helps..

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