The electronic configuration of Einsteinium is : (Given atomic number of Einsteinium $= 99$)
- A$[Rn] 5f^{12} 6d^0 7s^2$
- B$[Rn] 5f^{11} 6d^0 7s^2$
- C$[Rn] 5f^{13} 6d^0 7s^2$
- D$[Rn] 5f^{10} 6d^0 7s^2$
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