Cl has the electronic configuration of

• A. 1s², 2s², 2p⁶, 3s²
• B. 1s², 2s², 3s², 3p⁵
• C. 1s², 2s², 2p⁶, 3p⁵
• D. 1s², 2s², 2p⁶, 3s², 3p⁵