Question

Name the element with the electronic configuration 2, 8, 8, 1.

• A. Caesium
• B. Francium
• C. Potassium
• D. Sodium

Answer 1

The correct option is C

Potassium

Since the electronic configuration is given to us we can find the atomic number as we know the number of protons = number of electrons

So the number of protons is equal to 19. Therefore, the atomic number is also 19 (Atomic number = Number of protons).

The element with atomic number 19 is Potassium.

Therefore, the element K or Potassium has the electronic configuration 2, 8, 8, 1.