Lanthanum

This metal is found in the earth's crust but this metal will not rust!

Discovery/History
	In 1839, Carl Mosander of Sweden discover Lanthanum. Mosander obtained some cerium nitrate and treated it with dilute nitric acid cerium was contaminated with a new element. The word Lanthanum was taken from the Greek word "lantanein" which means "to be hidden."
Sources of Where it is Found
	Lanthanum is found with rare earth is monazite and bastnasite. It is found in bastnasite mined in the US and in China. Monazite mined in many various countries.
Uses for Lanthanum
	Lanthanum is used for opitical lens especially for cameras, color tv sets, carbonaro lamps which are used in motion pictures, medical lights, cigarette lighters, lighter flints, battery electrodes and Catalyic converters.
Chemical and Biological Properties
	Lanthanum is an active metal, it reacts with most acids. It reacts with both hot and cold water however it reacts with hot water much faster than it does with cold water. Lanthanum is one of the most reactive of the earth metals.
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To find Lanthanum, you have to mine for it.

Name	Lanthanum
Symbol	La
Atomic Number	57
Atomic Mass	138.9
Boiling Point	3737
Freezing (melting) point	1191
Electrons number	57
Classification	Metal
Number of Protons	57
Number of Neutrons	82
Malleability, Ductility, and Conductivity	Yes

Glossary

Monazite-A reddish-brown phosphate mineral containing rare-earth metals, (Ce, La, Y, Th)PO4, important as a source of cerium and thorium.
Bastnasite-a yellow-to-brown mineral that is a source of rare earth elements
Carbonaro-A member of a secret political association in Italy, organized in the early part of the nineteenth centry for the purpose of changing the government into a republic.
Catalyic-Of, involving, or acting as a catalyst: “Deregulation's catalytic power... is still reshaping the banking, communications, and transportation industries”

Bibliography