In the diagram, what does "Lone pair " represent?
Correct answer: B. A non-bonding electron pair on nitrogen
- A. A bonding electron pair
- B. A non-bonding electron pair on nitrogen
- C. A shared electron pair between hydrogen atoms
- D. A free proton
Explanation
The lone pair on nitrogen in NH₃ is a non-bonding pair, responsible for the trigonal pyramidal shape and bond angle reduction.
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