The atomic size decreases with an increase in atomic number for the elements of the ........
- A$p$-block
- B$f$-block
- CRadioactive series
- DHigh atomic mass elements
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Which of the following lanthanoids shows $+4$ oxidation state to acquire noble gas configuration?
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(At nos. : $La=57, Ce=58, Eu=63$ and $Yb=70$ )
Actinoid contraction is greater from element to element than lanthanoid contraction. Why?
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View SolutionWhich of the following oxidation states is common for all lanthanides?
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View SolutionWhat is the cause of lanthanoid contraction?
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