1. Metals Located on the left side of the zig-zag line
State of Matter - Solid at room temp. (except for mercury – Hg)
Conductivity - Good conductors of heat & electricity
Luster - Shiny
Malleable: Can be hammered into sheets
Ductile: Can be pulled into wire 1

2. Nonmetals Located on the right side of the zig-zag line
State of Matter - Includes gases
Luster - Dull, Brittle – if solid
Malleable - Not malleable
Ductile - Not ductile
Conductivity - Not good conductors (insulator) 2

3. Metalloids
Show characteristics of metals and nonmetals (For example, one could show metallic luster but NOT be a good conductor of electricity.)
semiconductors of electricity (conduct electricity more easily than insulators and less easily than conductors) 3