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yulyashka [42]
3 years ago
9

What subatomic particles make up an atom’s mass number

Biology
1 answer:
Sergio [31]3 years ago
5 0

Answer:

Basically,  together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.

Explanation:

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