Which of the following electron configurations represents that of an atom in its ground state?

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Chemistry WAEC 2012

Which of the following electron configurations represents that of an atom in its ground state?

  • 1s 22s12p1
  • 1s22s22p63s13p1
  • 1s22s12p3
  • 1s22s22p63s0 checkmark

The correct answer is: D

Explanation

The ground state of an electron, the energy level it normally occupies, is the state of lowest energy for that electron.

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