d and f BLOCK ELEMENTS MCQ Quiz: GKFix - Bridge of Knowledge

Question 686

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Based on the general trend 4fⁿ for Ln³⁺ ions, what would be the expected electronic configuration for the tripositive ion of Neodymium (Nd)?

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Based on the general trend 4fⁿ for Ln³⁺ ions, what would be the expected electronic configuration for the tripositive ion of Samarium (Sm)?

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Based on the general trend 4fⁿ for Ln³⁺ ions, what would be the expected electronic configuration for the tripositive ion of Gadolinium (Gd)?

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What is the primary electronic factor that differentiates the stability of Tb⁴⁺ from Tb³⁺?

Tb⁴⁺ achieves a half-filled (4f⁷) configuration, while Tb³⁺ has a 4f⁸ configuration
Tb⁴⁺ has a filled f-subshell, while Tb³⁺ has a half-filled f-subshell
Tb⁴⁺ has one unpaired electron, while Tb³⁺ has two
Tb⁴⁺ is diamagnetic, while Tb³⁺ is paramagnetic

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What is the primary electronic factor that differentiates the stability of Yb²⁺ from Yb³⁺?

Yb²⁺ achieves a filled (4f¹⁴) configuration, while Yb³⁺ has a 4f¹³ configuration
Yb²⁺ has a half-filled f-subshell, while Yb³⁺ has a filled f-subshell
Yb²⁺ has no unpaired electrons, while Yb³⁺ has one
Yb²⁺ is paramagnetic, while Yb³⁺ is diamagnetic