CHEMICAL BOND

Formed by sharing of electrons between two atoms

Draw Lewis structures of covalent molecules and ions

Explain overslapping and hybridisation of s and p orbitals

Shapes of molecules / ions

- Explain / predict by electron-pair repulsion theory

Polar and non-polar bonds:

- Polar and non-polar molecules

- Bond length and bond strength

- Inertness of N2

Electrons-sea model:

- Metal ions surrounded by a sea of mobilde elcrtons

Formed when one atom donates a lone pair of electrons to another atom

Hydrogen bond

Van der Waals forces

Effect of thses forces on the properties of substances

Chemical bond:

- Force of attraction that binds atoms together in a chemical substance

Ionic ( Electrovalent ) Bond

Covalent Bond

Metallic Bond

Coordinate Bond

Intermolecular Bond

Formed by the transfer of electorns from a metal atom to a non-metal atom

Exemplified by NaCl and MgCl2