Chemistry · Atomic Structure
What is the mass number of an atom?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The sum of the total number of protons and neutrons in the nucleus✓
- 2The total number of neutrons in the nucleus
- 3The total number of protons in the nucleus
- 4The total number of electrons in the nucleus
Correct answer
The sum of the total number of protons and neutrons in the nucleus
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