Here are some examples of molecules formed by covalent bonding:
* Water (H₂O): Two hydrogen atoms share electrons with one oxygen atom.
* Carbon dioxide (CO₂): One carbon atom shares electrons with two oxygen atoms.
* Methane (CH₄): One carbon atom shares electrons with four hydrogen atoms.
* Glucose (C₆H₁₂O₆): This complex molecule is made up of carbon, hydrogen, and oxygen atoms connected by covalent bonds.
* DNA: The building blocks of DNA are held together by covalent bonds.
Key takeaway: Covalent bonding is a powerful force that allows atoms to share electrons and form molecules. This type of bonding is responsible for the structure and function of countless molecules essential for life.
