Question:medium

Which actinoid from following in its +3 state has largest size?

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In $f$-block series (both Lanthanoids and Actinoids), size decreases from left to right due to poor shielding by $f$-electrons.
Updated On: Apr 30, 2026
  • U
  • Bk
  • Es
  • Md
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The Correct Option is A

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