Blog
Save
Email
Print
ShareIridium is a chemical element in the periodic table that has the symbol Ir and atomic number 77.
A dense, very hard, brittle, silvery-white transition metal of the platinum family, iridium is used in high strength alloys that can withstand high temperatures and occurs in natural alloys with platinum or osmium.
Iridium is notable for being the most corrosion resistant element known and for its association with the demise of the dinosaurs.
For more information about the topic Iridium, read the full article at Wikipedia.org, or see the following related articles:
Platinum — Platinum is a chemical element in the periodic table that has the symbol Pt and atomic number 78. A heavy, malleable, ductile, precious, grey-white ... > read more
Density — Density is a measure of mass per unit of volume. Density is a measure of mass per volume. The average density of an object equals its total mass ... > read more
Transition metal — The term transition metal (sometimes also called a transition element) commonly refers to any element in the d-block of the periodic table, including ... > read more
Actinide — The actinide series encompasses the 15 chemical elements that lie between actinium and lawrencium on the periodic table with atomic numbers 89 - 103. ... > read more
Krypton — Krypton is a chemical element with the symbol Kr and atomic number 36. A colorless, odorless, tasteless noble gas, krypton occurs in trace amounts in ... > read more
Indium — Indium is a chemical element in the periodic table that has the symbol In and atomic number 49. This rare, soft, malleable and easily fusible poor ... > read more
Germanium — Germanium is a chemical element in the periodic table that has the symbol Ge and atomic number 32. This is a lustrous, hard, silver-white, metalloid ... > read more
Lanthanum — Lanthanum is a chemical element in the periodic table that has the symbol La and atomic number ... > read more
Note: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Iridium at Wikipedia.org. See the Wikipedia copyright page for more details.
Recommend this page on Facebook, Twitter,
and Google +1:
Other bookmarking and sharing tools:
more 