Osmium


 * Element Name:** Osmium


 * Element Symbol:** Os


 * Atomic Mass:** 190[[image:Osmium_Shirbrina.png width="216" height="288" align="right"]]


 * Atomic Number:** 76


 * Electrons:** 76


 * Protons**: 76


 * Discovery:** This element was discovered by Smithson Tennant, a British chemist. Tennant's discovery was in 1803.


 * How It Was Named:** Osmium comes from the Greek word for a smell, osme.


 * State of Matter:** Solid


 * Melting Point:** 3033°C
 * Boiling Point:** 5012°C


 * Characteristics:** Osmium is extremely difficult to make. You would have to dissolve platinum ore with aqua, mixture of 25% nitric arid, and 75% hydrochloric acid. The element is hard, very poisonous and has a repulsive smell.


 * Use of Element:** Osmium is found in ballpoint pen tips, fountain pen tips, and record player needles.


 * Interesting Facts:** Osmium has the highest melting point and the lowest vapor pressure of the platinum group. The platinum group is made up of the elements ruthenium, rhodium, palladium, indrium, platinum, and osmium. Osmium can be made into a powder in a hydrogen temperature of 2000°C and it gives off a horrible smell. The tetroxide found in Osmium is highly toxic. It boils at 130°C. If you touch, or inhale the tetroxide, you would possibly experience eye damage, skin irritation, and lung congestion.

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