The pair of lanthanoid ions which are diamagnetic is [2024]

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Q.
The pair of lanthanoid ions which are diamagnetic is [2024]

1 $C e^{4 +}$ and $Y b^{2 +}$

2 $C e^{3 +}$ and $E u^{2 +}$

3 $G d^{3 +}$ and $E u^{3 +}$

4 $P m^{3 +}$ and $S m^{3 +}$

Ans.
(1)

Among the given lanthanoid ions, $C e^{4 +}$ and $Y b^{2 +}$ are diamagnetic in nature.

Electronic configuration of $C e : [X e] 4 f^{1} 5 d^{1} 6 s^{2}$ and $C e^{4 +} : [X e]$

Electronic configuration of $Y b : [X e] 4 f^{14} 6 s^{2}$ and $Y b^{2 +} : [X e] 4 f^{14}$

Solution

Q.
The pair of lanthanoid ions which are diamagnetic is [2024]

1 $C e^{4 +}$ and $Y b^{2 +}$

2 $C e^{3 +}$ and $E u^{2 +}$

3 $G d^{3 +}$ and $E u^{3 +}$

4 $P m^{3 +}$ and $S m^{3 +}$

Ans.
(1)

Among the given lanthanoid ions, $C e^{4 +}$ and $Y b^{2 +}$ are diamagnetic in nature.

Electronic configuration of $C e : [X e] 4 f^{1} 5 d^{1} 6 s^{2}$ and $C e^{4 +} : [X e]$

Electronic configuration of $Y b : [X e] 4 f^{14} 6 s^{2}$ and $Y b^{2 +} : [X e] 4 f^{14}$

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Solution

Q. The pair of lanthanoid ions which are diamagnetic is [2024]

1 Ce4+ and Yb2+

2 Ce3+ and Eu2+

3 Gd3+ and Eu3+

4 Pm3+ and Sm3+

Ans. (1) Among the given lanthanoid ions, Ce4+ and Yb2+ are diamagnetic in nature. Electronic configuration of Ce:[Xe]4f15d16s2 and Ce4+:[Xe] Electronic configuration of Yb:[Xe]4f146s2 and Yb2+:[Xe]4f14

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Q.
The pair of lanthanoid ions which are diamagnetic is [2024]

1 $C e^{4 +}$ and $Y b^{2 +}$

2 $C e^{3 +}$ and $E u^{2 +}$

3 $G d^{3 +}$ and $E u^{3 +}$

4 $P m^{3 +}$ and $S m^{3 +}$

Ans.
(1)

Among the given lanthanoid ions, $C e^{4 +}$ and $Y b^{2 +}$ are diamagnetic in nature.

Electronic configuration of $C e : [X e] 4 f^{1} 5 d^{1} 6 s^{2}$ and $C e^{4 +} : [X e]$

Electronic configuration of $Y b : [X e] 4 f^{14} 6 s^{2}$ and $Y b^{2 +} : [X e] 4 f^{14}$