Actinoid contraction is greater then lanthanoid contraction. give reason. plzzz
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decrease in the size of the actinoids as compared to that of lanthanoids is due to poorer shielding effect of the 5f orbitals in actinoids as compared to shielding of nuclear charge by 4f orbitals in lanthanoids. ... Hence, the size contraction in actinoids is greater as compared to that in lanthanoids.
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