OsmiumOsmium

By: Maggie RotanzBy: Maggie Rotanz

Properties & UsesProperties & Uses

Properties

• Atomic Weight: 190.23• Density (g/cc): 22.57 • Melting Point (°K):

3327• Boiling Point (°K):

5300 • Appearance: Blue-

white, lustrous, hard metal

• Highly Toxic

Uses

• Used to detect fingerprints

• Add hardness to alloys• For the tips of fountain

pens• Electrical Contacts• Instrument Pivots• Phonograph Needles

Facts & InformationFacts & Information

• Osmium comes from the Greek word “osme” meaning “a smell”.

• Osmium was discovered by a man named Smithson Tennant in 1803.

• Osmium can be found in bearing river sands of North and South America.

• Has a hexagonal crystal structure.• Is the heaviest known element.• Can be found in ores that contain platinum.

Osmium GraphicOsmium Graphic

No reaction with air

Discoveredin

London

6 energy levels

Atomic Mass

190.23 Atomic Number

76

SymbolOs

114 Neutrons

76 Protons76 Electrons

Bluish-White

Non-Toxic

Osmium

SourcesSources

• http://chemistry.about.com/library/blper5.htm• http://www.webelements.com/webelements/scholar/elements/period

ic-table/uses.html

• http://nautilus.fis.uc.pt/st2.5/scenes-e/elem/e07690.html• http://environmentalchemistry.com/yogi/periodic/Os.html

• http://www.svetn.org/Angel/section/default.asp?id=NS%2DBRE%2DSCI%2DScience6%2DYear05

• http://www.svetn.org/Angel/section/default.asp?id=NS%2DBRE%2DSCI%2DScience6%2DYear05