The electronic configuration of Einsteinium is

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Solution

Q.
The electronic configuration of Einsteinium is

(Given atomic number of Einsteinium = 99) [2024]

1 $[Rn] 5 f^{12} 6 d^{0} 7 s^{2}$

2 $[Rn] 5 f^{11} 6 d^{0} 7 s^{2}$

3 $[Rn] 5 f^{13} 6 d^{0} 7 s^{2}$

4 $[Rn] 5 f^{10} 6 d^{0} 7 s^{2}$

Ans.
(2)

${}_{99}{Es} = {}_{86}{[Rn]} 5 f^{11} 6 d^{0} 7 s^{2}$

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