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Nuclei

Easy Questions

Modern Physics

Dual Nature of Radiation and Matter
Atoms
Nuclei
Semiconductor Electronics : Materials, Devices and Simple Circuits
  1. The mass number of a nucleus is​
    1. sometimes less than and sometimes more than its atomic number
    2. always less than its atomic number ​
    3. ​always more than its atomic number
    4. sometimes equal to its atomic number
Correct Option: D

In case of hydrogen atom, ​Mass number = atomic number


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