* Electron Configuration: Sodium has one electron in its outermost shell (valence shell). This single electron is loosely bound and relatively easy to remove.
* Electropositivity: Sodium is highly electropositive, meaning it has a strong tendency to lose electrons and become positively charged.
* Octet Rule: By losing one electron, sodium achieves a stable octet configuration in its outermost shell, which is a more energetically favorable state.
How Sodium Forms Ions:
When sodium reacts with other atoms, it loses its outermost electron to form a positively charged ion, Na⁺. This process is called ionization.
Examples:
* Reaction with Chlorine: Sodium reacts with chlorine to form sodium chloride (NaCl). Sodium loses its electron to chlorine, forming Na⁺ and Cl⁻ ions, which then attract each other due to their opposite charges.
* Reaction with Water: Sodium reacts vigorously with water, releasing hydrogen gas and forming sodium hydroxide (NaOH). The sodium atom loses its electron to form Na⁺ ions.
In summary, sodium's tendency to lose its outermost electron makes it a highly reactive element that readily forms ionic bonds with other elements.
