GALLIUM Atomic number: 31 Atomic Mass: 69.7 Atomic Symbol: Ga
History Uses Properties Facts Glossary Bibliography	"It melts in your mouth, and in your hand" (Please do not eat Gallium)	by Yuta from Mill Valley Middle School, California
History- Gallium was discovered in 1875 by Paul Emile Lacoqde Boisbaudran in France. Gallium comes from the Latin word for "Gallium" which means France. It is a solid at room temperature, but melts at 95ºF. It has a silvery white color and is considered very reactive
Uses- Gallium is used for several different things. It can be used as a semiconductor. It is also used in high-tempreture thermometers because it is a liquid at 95º F. Other uses include a Coating for glasses and mirrors, and in special dental alloys.		This is a high-tempreture thermometer
Properties- Atomic Number: 31 Atomic Mass: 69.7 Chemical Symbol: Ga. Protons: 31 Electrons: 31 Neutrons: 39 Considered a Metal Solid at Room Temperature Group: 13- The Boron Group Period: 4
Facts- Gallium is not produced in the United States, but is supplied by imports. High-purity Gallium comes from France and Low-purity Gallium comes from Kazakhstan and Russia. Gallium is also a byproduct of the Zinc and Aluminum industries. Gallium reacts violently with halogens, strong oxidants and bases. Gallium is unique because it is one of the four elements that are a liquid at a comfortable temperature, the others being mercury, caesium and rubidium. Gallium has the longest liquid range of any element.
Glossary- Alloy- Solid solutions of metals of nonmetals dissolved in other metals Byproduct- Something produced in the making of something else Liquid Range- The range of temperatures at which something can be a liquid Semiconductor- Any of the various crystalline substances that have an electrical conductivity greater that insulators but less than good conductors Halogens- Any of a group of five chemically related nonmetallic elements including fluorine, chlorine, bromine, iodine, and astatine Oxidants- A substance that oxidizes another substance; an oxidizing agent Oxidize- To Combine with oxygen
Bibliography- Ms. Eagles Web Site Descriptions of Different Metals The Pictorial Periodic Table Chemicool Periodic Table Online Dictionary IMAGES FOUND AT: http://www.recapturemetals.com/gallium.htm http://sol.sci.uop.edu/~jfalward/specificandlatentheats/gallium.jpg OTHER INFORMATION FOUND AT: Heiserman, David. Exploring Chemical Elements and their Compounds. Division of McGraw-Hill Inc. Pennsylvania,1992.