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What are actinoids? Give their general electronic configuration.

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  • Actinoids : The series of fourteen elements from 90Th to 103Lr which follow actinium (89Ac) and in which differentiating electrons are progressively filled in 5f-orbitals in prepenultimate shell are called actinoids.
  • Their general electronic configuration is, [Rn]86 5f1-14 6d0-1 7s2.

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