Question

MCQ : The ground state electron configuration of potassium (Z = 19) is

  • Matter: Atomic structure
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Answer

Question

The ground state electron configuration of potassium (Z = 19) is

  1. 2, 8, 8, 1
  2. 2, 8, 9, 0
  3. 2, 9, 8, 0
  4. 2, 7, 8, 2

Answer

2, 8, 8, 1

Explanation

The ground state electron configuration of potassium (Z = 19) is 2, 8, 8, 1. This means that there are two electrons in the first energy level, eight in the second energy level, eight in the third energy level, and one in the fourth energy level.

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