Reason of lanthanoid contraction is:
- Increasing nuclear charge
- Decreasing nuclear charge
- Decreasing screening effect
- Negligible screening effect of 'f' orbitals
The Correct Option is D
Solution and Explanation
Top NEET Chemistry Questions
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E. The atomic radius of Cs is greater than that of Li and Rb.
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$K_p$ for the reaction at 1000 K is:- NEET (UG) - 2025
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B. [Ar]3d$^3$4s$^2$
C. [Kr]4d$^5$3s$^2$5p$^5$
D. [Ar]3d$^10$4s$^1$
E. [Rn]5f$^7$6d$^2$7s$^2$
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List - I(Block/group in periodic table) List - II(Element) (A) Lanthanoid (I) Ce (B) d-block element (II) As (C) p-block element (III) Cs (D) s-block element (IV) Mn - NEET (UG) - 2024
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