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  3. The mass number of an element is? A. The sum of proton and electron B....

The mass number of an element is? A. The sum of proton and electron B....

The mass number of an element is?
A. The sum of proton and electron
B. The sum of electron and neutron
C. The sum of proton and neutron
D. The sum of proton and atomic number.?
2 Answers Available
Asked by Oluwaseyi on 28th March, 2025
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