JAMB Chemistry 2010 Question 7

Question 7

Atomic Structure

How many unpaired electron(s) are there in the nitrogen sub-levels?

  1. A.3
  2. B.2
  3. C.1
  4. D.0
Show the answer and explanation

Answer: A (3)

Explanation

Nitrogen is 1s22s22p3; the three 2p electrons occupy separate orbitals, so 3 are unpaired.