Question:

Assertion (A): Actinoids show irregularities in their electronic configurations.
Reason (R): Actinoids are radioactive in nature.

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When studying actinoids, focus on their complex electronic configurations and their radioactive nature.
  • Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
  • Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
  • Assertion (A) is true, but Reason (R) is false.
  • Assertion (A) is false, but Reason (R) is true.
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The Correct Option is B

Solution and Explanation

Actinoids do indeed show irregularities in their electronic configurations, mainly due to the f-orbitals and their greater number of electrons. However, their radioactivity is not the cause of this irregularity. The reason is unrelated to their electronic configuration.
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