- Sodium (Na) has 1 electron in its outer shell (electron configuration 2.8.1). It loses this electron to achieve a stable noble gas configuration (Neon, 2.8), becoming a positively charged ion (Na⁺).
- Chlorine (Cl) has 7 electrons in its outer shell (electron configuration 2.8.7). It gains 1 electron to achieve a stable noble gas configuration (Argon, 2.8.8), becoming a negatively charged ion (Cl⁻).
- The transfer of one electron from sodium to chlorine results in the formation of oppositely charged ions (Na⁺ and Cl⁻).
- The strong electrostatic forces of attraction between these oppositely charged ions form an ionic bond, creating the ionic compound sodium chloride (NaCl).
Parent Tip: Review the logic above to help your child master the concept of ionic bonds worksheet.
