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MDCAT
Physics
2022

Physics · Nuclear Physics

Work through this past-paper style MCQ, then read the full explanation. Practice more physics questions on mMCQ with adaptive practice and topic analytics.

Question

It has been observed that Thorium (_90234)Th is transformed into Protactinium (_91234)Pa after the emission of particle:

Options
  • A

    Alpha

  • B

    Beta

  • C

    Gamma

  • D

    Alpha, Beta, Gamma

Explanation

When a β-particle is emitted out of any nucleus, then its mass number does not change but its charge number is increases by one. In this case, Thorium (90Th²³⁴) is transformed into proctactanium (91Pa²³⁴) after the emission of β-particle.

When a β-particle is emitted out of any nucleus, then its mass number does not change but its charge number is increases by one. In this case, Thorium (90Th²³⁴) is transformed into proctactanium (91Pa²³⁴) after the emission of β-particle.

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Tagged under Physics · Nuclear Physics · 2022