1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f3 6d1 7s2

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  Mass number of Uranium=238
  Atomic number of Uranium=92
Mass Number=Number of Protons=Number of Electrons
  .·.Number of electrons=238
     Number of protons=238[No.of electrons are equal to the no. of protons]
Atomic number=Number of protons+Number of neutrons
 .·.No.of neutrons=Number of protons-Atomic number

Electronic Configuration of Uranium= 
1s² 2s²  2 p^{6}   3s²  3 p^{6}   3 d^{10}   4s²  4 p^{6}    4 d^{10}    4 f^{14}  5s²  5 p^{6}    5 d^{10}    5f³ 6s²   6 p^{6}    6 d^{1}  7s²  
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