When a nucleus emits beta particle, its mass number remains constant but charge number increases by:

Correct answer: D. 1

  • A. 2
  • B. 3
  • C. 4
  • D. 1

Explanation

Explanation: Beta decay involves the transformation of a neutron into a proton (or vice versa). This increases the atomic number (charge number) by 1, while the mass number remains the same.

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