Covalent bonding
Key info for covalent bonding
- Created by: Ryan
- Created on: 09-04-13 12:38
View mindmap
- Covalent bonding
- Covalent bond is a very strong bond that is formed when electrons are shared
- Occurs between non-metal atoms
- Some have simple molecules e.g H2, Cl2 etc
- Some have giant covalent structures e.g. diamond, silicon dioxide
- A chlorine atom has 7 electrons in its outer shell. In order to bond with another chlorine atom, an electron from each atom is shared to give both chlorine atoms 8 electrons in their outer shell
- There are usually weak forces of attraction between the molecules which means that these substances usually have low boiling and melting points
- Giant molecular structures have very high melting and boiling pointss
- Diamond forms 4 covalent bonds with other carbon atoms
- Graphite only forms 3 covalent bonds with other carbon atoms
Comments
No comments have yet been made