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  • 19-12-2022
  • Chemistry
contestada

Which of the following electron configurations is impossible?
A. 1s22s22p63s23p4
B. 1s22s22p53s13p4
C. 1s22s22p63s23p63d104s2
D. 1s22s22p63s33p4
E. 1s12s22p63s23p4

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