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KCET2007PhysicsNuclear Physics

A radioactive element forms its own isotope after 3 consecutive disintegrations. The particles emitted are

Options

  1. A3 -particles
  2. B2 -particles and 1 -particle
  3. C2 -particles and 1 -particle
  4. D2 -particles and 1 -particle

Correct answer

B. 2 -particles and 1 -particle

Step-by-step solution

To form its own isotope atomic number (Z) should remain same. So, the emission of one -particle and two -particles will maintain the Z same. where -particle = ₂ He ⁴ ; b-particle = _ -1 ⁰

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