Changes

A shiny, [[solid]] substance, such as [[iron]].  They contrast with the [[nonmetal]]s. It is very difficult, if not impossible, to break metals.

Metals are shiny, [[solid]], and conductive substances, such as [[iron]].  They contrast with the [[nonmetal]]s. They are found on the left side of the [[Periodic Table]]. Most [[elements]] are metals. It is very difficult, if not impossible, to break metals.