Khan Academy on a Stick : Periodic table, trends, and bonding

Khan Academy on a Stick

Chemistry

Groups of the Periodic Table
cc

Properties of alkali, alkaline earth and transition metals. Halogens and noble gases.
Valence Electrons
cc

Looking at valence electrons to figure out reactivity
Periodic Table Trends: Ionization Energy
cc

What an ion is. Using the periodic table to understand how difficult it is to ionize an atom.
Other Periodic Table Trends
cc

Electronegativity, metallic nature and atomic radius.
Ionic, Covalent, and Metallic Bonds
cc

Introduction to ionic, covalent, polar covalent and metallic bonds.