Metals, Non-Metals and Metalloids

Metals

Physical Properties

ALL METALS
Shiny
Good conductors of heat and electricity
Malleable (can be bent without breaking)

MOST METALS
Solid (at room temperature)
High melting/boiling point
Hard & Strong
High Density (have a high volume to surface area ratio - are heavy for their size)
Ductile (can be drawn into wires)
Sonorous (ring when hit)

Chemical Properties
Easily lose electrons (to obtain a full outer shell)
Corrode easily (wear away)


Metalloids

Metalloids have some of the properties of metals and non-metals
  
Physical Properties
Solid
Malleable
Ductile
Conduct heat and electricity better than non-metals but not as well as metals
Can be either dull or shiny

Non-Metals

Physical Properties

ALL NON-METALS
Dull
Brittle (break easily)
Poor conductor of heat and electricity

MOST NON-METALS
Low density (have a low volume to surface area ratio - are light for their size)
Not malleable, ductile or sonorous

Non-metals have varying melting/boiling points. This is known by the fact that at room temperature, the non-metals can be found in different states. Eleven non-metals are gases, one non-metal is liquid (bromine) and the rest are solid.

Chemical Properties
Easily gain electrons (to obtain a full outer shell)