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The tendency to form complexes of the la...

The tendency to form complexes of the lanthanoids is `ul "more"` than that of actinoids.

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To solve the question regarding the tendency of lanthanoids and actinoids to form complexes, we will analyze the properties of both groups of elements and their electronic configurations. ### Step-by-Step Solution: 1. **Understanding the Groups**: - Lanthanoids are the elements with atomic numbers 57 to 71 (from Lanthanum to Lutetium) and belong to the f-block of the periodic table. - Actinoids are the elements with atomic numbers 89 to 103 (from Actinium to Lawrencium) and also belong to the f-block. ...
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