Which of the following is the electronic configuration of sodium? (Atomic number of Na =…

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Chemistry JAMB 1981

Which of the following is the electronic configuration of sodium?
(Atomic number of Na = 11)

  • 1s2 2s22p6 3s2
  • 1s2 2s22p6 3s2 3p1s2 2s22p6 3s1
  • 1s2 2s22p6 3s1 checkmark
  • 1s2 2s22p6 3s°
  • 1s2 2s22p6 4s1

The correct answer is: C

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