10
Bonding in Solids Tuesday, January 23, 18
Bonding in Solids
Tuesday, January 23, 18
Chemists often divide solids into two types:
Crystalline solids
Amorphous solids
Tuesday, January 23, 18
Have indistinct shapes because their structural units lack order.
Example: Glass and rubber
Amorphous Solids
Tuesday, January 23, 18
Have organized structural units and distinct shapes
Example: Garnet
Crystalline Solids
Tuesday, January 23, 18
Crystalline Solids
Chemists classify crystalline solids into five categories
Tuesday, January 23, 18
Crystalline Solids
Atomic Solids - Covalent Non-polarIndividual atoms held together by London Dispersion ForcesVery low melting and boiling pointsVery rare (Noble gases in solid state)
Tuesday, January 23, 18
Crystalline Solids
Molecular Solids- Covalent PolarStronger dipole-dipole forces giving them higher melting and boiling points then atomic
Tuesday, January 23, 18
Crystalline Solids
Network SolidsCovalently bonded to form 3D structures. Often form crystalline structures in carbon-based solids
Tuesday, January 23, 18
Crystalline Solids
Ionic SolidsArray of ions, arrange in a crystal lattice structure.
Tuesday, January 23, 18
Crystalline Solids
Metallic SolidsFree electrons pool around metal cations.Strong bonding leads to high boiling and melting points.
Tuesday, January 23, 18
