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QAIPMT-2003-Ph-2720: NEET 2003 Physics - Class 12 AIPMT-2003-Ph-2720 Solution: The mass number of a nucleus is
The mass number of a nucleus is
Multiple Choice Options
- A always less than its atomic number
- B always more than its atomic number
- C sometimes equal to its atomic number
- D sometimes less than and sometimes more than its atomic number
Step-by-Step Verified Solution
Mass number = atomic number + no. of
neutrons
For hydrogen, number of neutrons = 0
So, mass number = Atomic number.
Hence mass number is sometimes equal to atomic
number.