Lanthanoid ions with $4{f}^{7}$ configuration are : (A) $E{u}^{2+}$ (B) $G{d}^{3+}$ (C) $E{u}^{3+}$ (D) $T{b}^{3+}$ (E) $S{m}^{2+}$ Choose the correct answer from the options given below

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Lanthanoid ions with \(4{f}^{7}\) configuration are : (A) \(E{u}^{2+}\) (B) \(G{d}^{3+}\) (C) \(E{u}^{3+}\) (D) \(T{b}^{…

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