Covalent Bonds
What are covalent bonds?
- Electrons are shared rather than transferred
- Generally bonding between non-metals is covalent and bonding between a metal and non-metal is ionic
- However, ions with +3 or +4 charges form polar covalent bonds
- 2 shared electrons = single bond
- Double bond = 4 electrons shared
- Triple bond = 6 electrons shared
- The bond results from a balance between the attraction between the nucleus and electrons and the repulsion of the two nuclei
- The covalent bond is said to be directional
- It’s easier to understand this if you know that ionic bonds are non-directional. Ionic substances don’t exist as discrete molecules but as a bunch of ions packed together in a way that minimizes repulsion between like charges – a crystal lattice
Naming Inorganic Covalent Compounds.doc |
Covalent Bonding Notes.doc |
Lewis Structure.doc |
VSEPR Geometry.doc |
Carbon Allotropes.ppt |