MCQ
The mass number is same as $ ..........$
- ✓Atomic mass number.
- BMolecular mass number.
- CBoth $a$ and $b.$
- DNone of the above.
✓
Answer
Correct option: A.
Atomic mass number.
The mass number should also not be confused with the relative atomic mass $($also called atomic weight$)$ of an element, which is the ratio of the average atomic mass of the different isotopes of that element $($weighted by abundance$)$ to the unified atomic mass unit.
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