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What is lanthanoids contractions? What are its consequences?

Answer»

Explanation:

In Lanthanoids from left to right there is a gradually decreasing

atomic size is known as Lanthanoid CONTRACTION. This is due to

poor sheilding EFFECT of F orbital.

consequences

  1. The seperation of lanthonids very difficult.
  2. The FOLLOWING pair of elements have similar atomic sizes

Ex: Zr and Hf, Nb and Ta, Mo and W

Hope it is understand for everyone


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