Metal
What is a metal? In the periodic table one way
to categorize the elements is as metals, nonmetal and metalloids.
In the periodic table below, themetals are those elements in
blue.
![](../1014/Lecture/Periodictable.GIF)
Metals are generally solids, good conductors of
electricity and heat. They react with acids to form hydrogen gas.
The more reactive metals can react with water to form hydrogen
gas.