The number of unpaired electrons in NH3:
Correct answer: B. 1
- A. 0
- B. 1
- C. 3
- D. 4
Explanation
Ammonia (NH3) has one unpaired electron. Each hydrogen (H) atom contributes one electron to form a covalent bond with the central nitrogen (N) atom. The nitrogen atom itself has three lone pairs of electrons in its valence shell. One of these three lone pairs is unpaired, making it available for bonding or interactions. This unpaired electron gives NH3 its chemical reactivity and ability to form bonds with other atoms or molecules.
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