Which of the following ions are paramagnetic | vedclass

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(B) For an ion to be paramagnetic and coloured,it must have unpaired electrons in its $4f$ orbital.$1$. $Ce^{+4}$ $([Xe] 4f^0)$: Diamagnetic and colou

Vedclass · Accepted Answer

$Gd^{+3}, \, Nd^{+3}$

Vedclass · Answer

(B) For an ion to be paramagnetic and coloured,it must have unpaired electrons in its $4f$ orbital.$1$. $Ce^{+4}$ $([Xe] 4f^0)$: Diamagnetic and colourless.$2$. $Yb^{+2}$ $([Xe] 4f^{14})$: Diamagnetic and colourless.$3$. $Gd^{+3}$ $([Xe] 4f^7)$: Paramagnetic and coloured.$4$. $Nd^{+3}$ $([Xe] 4f^3)$: Paramagnetic and coloured.$5$. $La^{+3}$ $([Xe] 4f^0)$: Diamagnetic and colourless.$6$. $Lu^{+3}$ $([Xe] 4f^{14})$: Diamagnetic and colourless.$7$. $Lr^{+3}$ $([Rn] 5f^{14})$: Diamagnetic and colourless.Therefore,$Gd^{+3}$ and $Nd^{+3}$ are both paramagnetic and coloured.

Which of the following ions are paramagnetic and coloured?

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