* Nonmetals have a high electronegativity, meaning they have a strong tendency to attract electrons.
* Covalent bonds form when two atoms share electrons to achieve a more stable electron configuration, usually resembling a noble gas.
Here's why this happens:
* Nonmetals are generally looking to gain electrons to fill their outer shell and achieve a stable configuration.
* Sharing electrons allows them to achieve this stability without completely transferring electrons like in ionic bonds.
Examples of nonmetals reacting to form covalent bonds:
* Oxygen and Hydrogen form water (H₂O)
* Carbon and Oxygen form carbon dioxide (CO₂)
* Nitrogen and Hydrogen form ammonia (NH₃)
* Chlorine and Fluorine form chlorine monofluoride (ClF)
Key points:
* Covalent bonds can be single, double, or triple depending on how many electrons are shared.
* The resulting molecules are typically gases or liquids at room temperature, with low melting and boiling points.
* Covalent compounds tend to be poor conductors of electricity due to the lack of free-moving electrons.
In summary: Nonmetals react with other nonmetals by sharing electrons to form covalent bonds, leading to the creation of molecules with unique properties.
