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d and f BLOCK ELEMENTS
Question #39548
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What is the primary difference in the electronic configurations of Tb³⁺ and Tb⁴⁺ ions?
A. Tb³⁺ has a 4f⁸ configuration, while Tb⁴⁺ has a 4f⁷ configuration
B. Tb³⁺ has a 4f⁷ configuration, while Tb⁴⁺ has a 4f⁸ configuration
C. Tb³⁺ has a 4f⁹ configuration, while Tb⁴⁺ has a 4f⁸ configuration
D. Tb³⁺ has a 4f⁸ configuration, while Tb⁴⁺ has a 5d¹ configuration
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