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  • Periodic Classification of Elements - 1
  • Which of the following elements has the electronic config...
Multiple choice

Which of the following elements has the electronic configuration 2, 8, 8, 1?

  1. Sodium

  2. Potassium

  3. Scandium

  4. Calcium

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The correct answer is option (2). Potassium has atomic number 19. Its electronic configuration is 2, 8, 8, 1. 

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