Identify the number of paired and unpaired electrons in the valence d subshell of i) Cd and ii) Co.

• A. i) 2 paired electrons, 8 unpaired electronii) 6 paired electrons, 1 unpaired electron
• B. i) 10 paired electrons, 0 unpaired electronsii) 4 paired electrons, 3 unpaired electrons
• C. i) 8 paired electrons, 2 unpaired electronsii) 2 paired electrons, 5 unpaired electrons
• D. i) 6 paired electrons, 4 unpaired electronii) 4 paired electrons, 3 unpaired electrons

Answer: (B)