METALSWhat are Metals?

Metals are elements which have the following Physical Properties:

-Shininess

-Malleability - Can be pounded into shapes

-Hardness

-Ductility - Can be pulled out into a wire ( ex coat hanger)

-Conductivity - transmit heat & electricity easily

- Metals also have Chemical Properties:

-Group 1 metals are the most reactive and if they are exposed to air or water can explode.

- Other metals such as gold are unreactive.

-Some metals are very reactive (they combine easily with other elements)

NONMETALS

What are Nonmetals?

- In general the Physical Properties of nonmetals are opposite to those of metalsNonmetals have the following Physical

Properties:

-Most nonmetals are gases ( O, He, H, N)

-Most nonmetals are dull ( not shiny)

-Not malleable (brittle) or ductile

-Poor conductors of heat & electricity

Nonmetals also have chemical properties

- Most nonmetals (except Noble Gases: He,Ne, Ar,Kr,Xe,Rn) readily form compounds with other elements.