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JAMB Chemistry 2023 Question 32

Question 32

Periodic Table

Given the distance between the nuclei of chlorine atoms in a chlorine molecule as 0.194mm, calculate its atomic radius.

  1. A.0.194mm
  2. B.0.097mm
  3. C.2.388mm
  4. D.0.388mm
Show the answer and explanation

Answer: B (0.097mm)

Explanation

The nucleus-to-nucleus distance is two atomic radii, so r = 0.194/2 = 0.097.