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3. What determines the mass number of an element?
The mumhor of nrotons

User Distante
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2 Answers

5 votes

Answer:

Protons and neutrons

Step-by-step explanation:

The combined sum of protons and neutrons determine the mass

User Acrobat
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Answer: The number of protons and the number of neutrons determine an element's mass number.

Step-by-step explanation:

User Avpx
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