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(i)with reference to structural variabil...

(i)with reference to structural variability and chemical reactivity write the differences between lanthanoids and actinoids
(ii) Name a member of the lanthanoid series which is well known to exhibit +4 oxidation state

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### Step-by-Step Solution #### (i) Differences between Lanthanoids and Actinoids 1. **Radioactivity**: - **Lanthanoids**: Generally, lanthanoids are not radioactive. They are stable and have isotopes that are mostly non-radioactive. - **Actinoids**: Actinoids are predominantly radioactive. All actinides have at least one radioactive isotope. ...
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XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-Outside Delhi : SET-I
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