by Caroline Ms. Eagle's Eight Grade Class Mill Valley Middle School
Anchors: Basic Information History Source/Cost Properties Handling Atomic Structure Uses Bibliography	Atomic Stucture
Basic Information: Chemical symbol: Os Atomic number:76 Atomic mass:190.2 Neutrons:114.2 Protons/Electrons:76 Group:8 Period:6 Melting Point: 3045 Boiling Point:5027 C Classifcation: Transition Metal Crystal Structure: Hexagonal Color: Sliver Discovered:1803		Sources/ Cost: Osmium can be located in North and South America or in the Sandbury, Ontario region. It can often be obtained from the same ores as platinum. It would cost about 100 dollars per gram of 99% pure osmium powder.
	History: Osmium was discovered by an English scientist by the name of Smithson Tennant in 1803. This element was found in the residue left when crude platnium was dissolved by aqua regia. Osmium's named originated from the Greek word osme which means a metalwitha pungent stench, due to it's repelling odor.
Properties: Osmium is often described as bluish silver, hard and brittle with a strong stench. It is said to have the highest melting point as well as the lowest vapor pressure of it's group. This metal is fairly difficult to fabricate.
	Bibliography: Chemicool Periodic Table Environmental Chemistry Periodic Table Interactive Periodic Table of the Elements Periodic Table Periodic Table of the Elements Periodic Table of Poetry Pictorial Periodic Table Web Elements Periodic Table

Uses: Osmium has uses ranging from detecting fingerprints to tipping fountain pens. This element has been used to stain tissue for microscopes as well as produce tips for phonograh needles and electrical contacts.
	Handling: It is possible for Osmium to cause skin damage, lung congestion or even eye damage if in concentrations as low as 10/g/m. You should not be exposed to osmiun tetroxide more than 40 hours per week.