Chemistry · Structure of Atom
What is the mass number of an element defined as?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Number of protons
- 2Sum of the number of protons and neutrons✓
- 3Number of neutrons
- 4Sum of the number of electrons and protons
Correct answer
Sum of the number of protons and neutrons
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