The number of unpaired electrons in NH3:
Correct answer: A. 0
- A. 0
- B. 2
- C. 3
- D. 4
Explanation
In ammonia (NH₃), the nitrogen atom has five valence electrons, and each of the three hydrogen atoms contributes one valence electron. The Lewis structure of NH₃ shows that nitrogen forms three single bonds with the hydrogen atoms and has one lone pair of electrons. Here's a summary of the electron configuration:Nitrogen (N): 5 valence electronsBonding with Hydrogen (H): 3 electrons used for bonding, 2 electrons remain as a lone pair
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