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प्रश्न
How would you account for the following:
The chemistry of actinoids is more complicated as compared to lanthanoids.
Chemistry of actinoids is complicated as compared to lanthanoids. Give two reasons.
Why is the chemistry of actinoids complicated as compared to lanthanoids?
उत्तर १
The energy difference between the 6d, 7s and 5f orbitals is very small in actinoids. In addition, the 5f orbitals of the actinoids are less shielded than the 4f orbitals of the lanthanoids. Thus, in the lanthanoids, only 4f electrons of Ce participate in chemical bonding, whereas in the lighter actinoids, up to americium, the 5f electrons also take part. This makes the chemistry of actinoids more complicated than that of lanthanoids
उत्तर २
The reasons are as follows:
- Actinoids display a large number of oxidation states, while lanthanoids primarily show only three oxidation states.
- Actinoids are radioactive in nature.
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संबंधित प्रश्न
How would you account for the following:
Actinoid contraction is greater than lanthanoid contraction.
Compare the chemistry of the actinoids with that of lanthanoids with reference to chemical reactivity.
Write one similarity and one difference between the chemistry of lanthanoid and actinoid elements.
How do you prepare:
Actinoid elements show wide range of oxidation states.
Manganese in the +2 oxidation state is more stable than +3 oxidation state where as iron is stable at +3 oxidation state than +2 oxidation state. Explain why?
Actinoid series begins at ____________ and ends at ____________.
Which of the following properties is NOT of actinoids?
Which among the following elements is radioactive?
Maximum oxidation state exhibited by Chlorine is ______.
Which of the following actinoids show oxidation states upto +7?
(i) Am
(ii) Pu
(iii) U
(iv) Np
