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What is the Lanthanide Contraction?


The Lanthanide Contraction refers to the progressive decrease in ionic radii and atomic radii across the lanthanide series from lanthanum to lutetium.

Explanation: This phenomenon occurs because of poor shielding by the 4f electrons, leading to a stronger attraction between the nucleus and the outer electrons, which decreases the size of the atoms

Practical Use: The lanthanide contraction affects the chemistry of transition metals and is important in materials science and coordination chemistry

Key Concepts: Atomic Structure, Transition Metals, Periodic Trends

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