Chemistry · Atomic Structure
The mass number of an atom is equal to which of the following?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Number of protons + Number of neutrons✓
- 2Number of protons + Number of electrons
- 3Number of neutrons only
- 4Number of electrons only
Correct answer
Number of protons + Number of neutrons
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