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The atomic number of an atom would be equal to its mass number if it

The atomic number of an atom would be equal to its mass number if it
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  • A Has a totally filled valence shell
  • B Has a high charge to mass ratio
  • C Does not contain neutrons
  • D Exhibits isotopy
Correct Answer: Option C
Explanation:
- The mass number of an atom is its total number of protons and neutrons

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