Question
Write down the electronic configuration of: $Lu^{2+}$
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Answer
$ L u^{2+}: 1 s^2 2 s^2 2 p^6 3 s^2 3 p^6 3 d^{10} 4 s^2 4 p^6 4 d^{10} 5 s^2 5 p^6 4 f^{14} 5 d^1$
$ \text { Or, }[X e]^{54} 2 f^{14} 3 d^3$
$ \text { Or, }[X e]^{54} 2 f^{14} 3 d^3$
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