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The separation of $Lanthanoid$ elements is based on which of the following?
Easy
View SolutionWhich lanthanoid element has the electronic configuration $[Xe]4f^7 5d^1 6s^2$?
Easy
View SolutionWhich of the following pairs show $+2$ oxidation state?
Medium
View SolutionLanthanoids $(Ln)$ are well known for their $+3$ oxidation state. Which of the following statements is $NOT$ applicable to them?
Easy
View SolutionMatch the properties given in List-$I$ with the elements given in List-$II$:
List-$I$ (Property) List-$II$ (Element) $(A)$ Lanthanoid showing $+4$ oxidation state $(i)$ $Pm$ $(B)$ Lanthanoid showing $+2$ oxidation state $(ii)$ $Ce$ $(C)$ Radioactive lanthanoid $(iii)$ $Lu$ $(D)$ Lanthanoid with $4f^7$ configuration in $+3$ state $(iv)$ $Eu$ $(E)$ Lanthanoid with $4f^{14}$ configuration in $+3$ state $(v)$ $Gd$ - $(vi)$ $Dy$
| List-$I$ (Property) | List-$II$ (Element) |
| $(A)$ Lanthanoid showing $+4$ oxidation state | $(i)$ $Pm$ |
| $(B)$ Lanthanoid showing $+2$ oxidation state | $(ii)$ $Ce$ |
| $(C)$ Radioactive lanthanoid | $(iii)$ $Lu$ |
| $(D)$ Lanthanoid with $4f^7$ configuration in $+3$ state | $(iv)$ $Eu$ |
| $(E)$ Lanthanoid with $4f^{14}$ configuration in $+3$ state | $(v)$ $Gd$ |
| - | $(vi)$ $Dy$ |
Medium
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