teFazoe3150 teFazoe3150
  • 06-04-2024
  • Chemistry
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Which of the following electronic configuration shows that the atom is in excited state?
O 1s2 2s1
O 1s2 2s2 2p4
O 1s2 2s2
O 1s2 2s2 2p6 3s2
O 1s2 2s2 3s1

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