The number of 4f electrons in the ground state electronic configuration of Gd2+ is ________.
[Atomic number of Gd = 64]
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Solution
The electronic configuration of
64 Gd : [Xe] 4f⁷ 5d¹ 6s²
So the electronic configuration of
64 Gd²⁺ : [Xe] 4f⁷ 5d⁰ 6s⁰
i.e. the number of f electrons in the ground state
electronic configuration of Gd²⁺ is 7.
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