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- Cl⁻ has gained one electron: 17 + 1 = 18 electrons .
- Configuration must be 2, 8, 8 (a complete octet).
- The correct diagram is the one showing shells filled as 2, 8, 8.
Questions at the end of the chapter
Questions at the end of the chapter
Last updated at July 3, 2026 by Teachoo