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Question
What causes actinoid contraction?
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Solution
Actinoid contraction resulting from poor shielding by 5f electrons.
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RELATED QUESTIONS
Distinguish between lanthanoid and actinoids.
How would you account for the following:
Actinoid contraction is greater than lanthanoid contraction.
Write one similarity and one difference between the chemistry of lanthanoid and actinoid elements.
Give reasons for the following:
The chemistry of actinoids elements is not so smooth as that of the lanthanoids.
Which of the following actinoids exhibits only + 3 oxidation state?
The actinoid contraction is attributed to the ____________.
The number of unpaired f-electrons in ytterbium (Z = 70) is ____________.
The highest oxidation state in plutonium (At. no. = 94) is ______.
The inner transition metals of 5f series are known as ____________.
What are actinoids? Give their general electronic configuration.
