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प्रश्न
Compare the chemistry of the actinoids with that of lanthanoids with reference to oxidation states
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उत्तर
Oxidation states - The principal oxidation state of lanthanoids is (+3). However, sometimes we also encounter oxidation states of + 2 and + 4. This is because of extra stability of fully-filled and half-filled orbitals. Actinoids exhibit a greater range of oxidation states. This is because the 5f, 6d, and 7s levels are of comparable energies. Again, (+3) is the principal oxidation state for actinoids. Actinoids such as lanthanoids have more compounds in +3 state than in +4 state.
संबंधित प्रश्न
Distinguish between lanthanoid and actinoids.
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
How would you account the following :
Highest fluoride of Mn is MnF4 whereas the highest oxide is Mn2O7.
How do you prepare:
Actinoid elements show wide range of oxidation states.
Give reasons for the following:
The chemistry of actinoids elements is not so smooth as that of the lanthanoids.
Choose the most correct option.
In which of the following series all the elements are radioactive in nature?
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?
The actinoid contraction is attributed to the ____________.
Which among the following actinoids exhibits highest oxidation state +7?
Which among the following elements is radioactive?
Maximum oxidation state exhibited by Chlorine is ______.
Which of the following oxidation state is common for all lanthanoids?
Which of the following actinoids show oxidation states upto +7?
(i) Am
(ii) Pu
(iii) U
(iv) Np
What is actinoid contraction?
