Transition metals

Similar term(s): transition elements.

A (loosely defined) group of 38 elements with specific chemical properties.

Examples of transition metals include Iron (Fe), Zinc (Zn), Nickel (Ni), Copper (Cu), Silver (Ag), Manganese (Mn), Cobalt (Co), etc.

The name transition comes from their position in the periodic table (groups 3 to 12).

These elements are very hard with high melting points and high electrical conductivity.

Source: GreenFacts

For the whole list of transition metals in the table of chemical elements see:

http://chemistry.about.com/library/blper5.htm 

Source: GreenFacts

Element

Ozone

Particulate Matter

Nitrogen Dioxide