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d and f BLOCK ELEMENTS
Question #39546
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What is the primary difference in the electronic configurations of Eu²⁺ and Eu³⁺ ions?
A. Eu²⁺ has a 4f⁷ configuration, while Eu³⁺ has a 4f⁶ configuration
B. Eu²⁺ has a 4f⁶ configuration, while Eu³⁺ has a 4f⁷ configuration
C. Eu²⁺ has a 4f⁸ configuration, while Eu³⁺ has a 4f⁷ configuration
D. Eu²⁺ has a 4f⁷ configuration, while Eu³⁺ has a 5d¹ configuration
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