* F-F (Fluorine-Fluorine): Nonpolar
* Fluorine atoms have the same electronegativity, meaning they pull on electrons equally.
* The bond is symmetrical and there's no difference in charge distribution.
* O-O (Oxygen-Oxygen): Nonpolar
* Similar to F-F, oxygen atoms have the same electronegativity.
* The bond is symmetrical.
* O-H (Oxygen-Hydrogen): Polar
* Oxygen is much more electronegative than hydrogen.
* This creates a partial negative charge (δ-) on the oxygen atom and a partial positive charge (δ+) on the hydrogen atom.
* H-H (Hydrogen-Hydrogen): Nonpolar
* Hydrogen atoms have the same electronegativity.
* The bond is symmetrical.
Key Concept: Electronegativity
Electronegativity is the ability of an atom in a molecule to attract electrons. The higher the electronegativity difference between two bonded atoms, the more polar the bond.
