AP Chemistry
1.8 Valence Electrons and Ionic Compounds
1.5 Atomic Structure and Electron Configuration
Transition metal compounds frequently exhibit paramagnetism as a result of unpaired electrons in their valence d subshells. A chemist analyzes a crystalline salt containing isolated \(\text{Co}^{2+}\) ions. Which row in the table correctly identifies the ground-state electron configuration and the number of unpaired electrons for a gaseous \(\text{Co}^{2+}\) ion?
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