AP Chemistryeasymcq1 pt
How many unpaired electrons does a ground-state nitrogen atom have?
A.3
B.1
C.5
D.0
Explanation
Core Concept
Nitrogen is 1s² 2s² 2p³. Hund's rule places one electron in each of the three 2p orbitals, all unpaired, for three unpaired electrons total.
Correct Answer
A3
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