* Electronegativity: Fluorine (F) is the most electronegative element, meaning it has a strong attraction for electrons. Sodium (Na) is a highly electropositive element, meaning it readily loses electrons. This significant difference in electronegativity leads to a transfer of electrons, forming ions.
* Ionic Bonding: When sodium loses an electron, it becomes a positively charged ion (Na+). When fluorine gains an electron, it becomes a negatively charged ion (F-). These oppositely charged ions attract each other, forming an ionic bond.
Example: Sodium fluoride (NaF) is a classic example of an ionic compound formed by the combination of sodium and fluorine.
Important Note: Other elements can also form ionic compounds with fluorine, but sodium is a prime example due to its high electropositivity.
