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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?
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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
Give a reason for the following:
Actinoids show irregularities in their electronic configurations.
With reference to structural variability and chemical reactivity, write the differences between lanthanoids and actinoids
Write one similarity and one difference between the chemistry of lanthanoid and actinoid elements.
What is the position of actinoids in periodic table ?
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?
Which of the following actinoids shows +6 oxidation state?
Identify the CORRECT statement.
Actinoid series begins at ____________ and ends at ____________.
Which among the following elements is radioactive?
