The number of unpaired electrons in $\left[\mathrm{Co}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{2+}$ is ____ .
Answer
Answer (as printed): 3
The options are missing from the source scan for this question, so there is nothing here for this letter to point at. The letter is what the book printed.
Explanation
Answer: 3 — [Co(H₂O)₆]²⁺ is high-spin d⁷, t₂g⁵e_g².