Protactinium ⁹¹Pa
⁸⁶[Rn] 5f² 6d¹ 7s²
Uranium ⁹²U
⁸⁶[Rn] 5f³ 6d¹ 7s²
Neptunium ⁹³Np
⁸⁶[Rn] 5f⁴ 6d¹ 7s²
Plutonium ⁹⁴Pu
⁸⁶[Rn] 5f⁶ 7s²
Americium ⁹⁵Am
⁸⁶[Rn] 5f⁷ 7s²
Curium ⁹⁶Cu
⁸⁶[Rn] 5f⁷ 6d¹ 7s²
Berkelium ⁹⁷Bk
⁸⁶[Rn] 5f⁹ 7s²
Californium ⁹⁸Cf
⁸⁶[Rn] 5f¹⁰ 7s²
Einsteinium ⁹⁹Es
⁸⁶[Rn] 5f¹¹ 7s²
Fermium ¹⁰⁰Fm
⁸⁶[Rn] 5f¹² 7s²
Mendelevium ¹⁰¹Md
⁸⁶[Rn] 5f¹³ 7s²
Nobelium ¹⁰²No
⁸⁶[Rn] 5f¹⁴ 7s²
Lawrencium ¹⁰³Lr
⁸⁶[Rn] 5f¹⁴ 7s² 7p¹
Order of energy of orbitals
7s< 5f< 6d