Iridium - Element Properties and Periodic Table Information

Iridium - An element from the Periodic Table based on the IOUPAC 1985 standard

Chemical Elements

Periodic Table

Definition of the Iridium Element
A very hard and brittle, exceptionally corrosion-resistant, whitish-yellow metallic element occurring in platinum ores and used principally to harden platinum and in high-temperature materials, electrical contacts, and wear-resistant bearings.

Origin / Meaning of the name Iridium
The name "iridium" originates from the Latin word meaning "of rainbows"

Classification of the Iridium Element
Iridium is classified as a "Transition Metal" which are located in Groups 3 - 12 of the Periodic Table. An Element classified as a Transition Metals is ductile, malleable, and able to conduct electricity and heat.

Facts about the History and the Discovery of the Iridium Element
Iridium was discovered by Smithson Tennant in London, England in 1803

Occurrence the Iridium Element
The Earth's core is rich in iridium
Obtained from gravel deposits with platinum

Associated Uses of Iridium
Hardening agent in platinum alloys
Fountain pen nibs
Making crucibles
Electrical contacts
Spark plugs
Phones
Goggles
Denso iridium
 

The Properties of the Iridium Element
Name of Element : Iridium
Symbol of Element : Ir
Atomic Number of Iridium : 77
Atomic Mass: 192.217 amu
Melting Point: 2410.0 °C - 2683.15 °K
Boiling Point: 4527.0 °C - 4800.15 °K
Number of Protons/Electrons in Iridium : 77
Number of Neutrons in Iridium : 115
Crystal Structure: Cubic
Density @ 293 K: 22.5 g/cm3
Color of Iridium : whitish-yellow

Iridium and the Periodic Table
Check out Iridium on the Periodic Table which arranges each chemical element according to its atomic number, as based on the periodic law, so that chemical elements with similar properties are in the same column. Our Periodic Table is simple to use - just click on the symbol for Iridium for additional information and for an instant comparison of the Atomic Weight, Melting Point, Boiling Point and Mass - G/cc with any other element. An invaluable source of facts and information as a Chemistry reference guide.

Iridium - IUPAC and the Modern Standardised Periodic Table
The Standardised Periodic Table in use today was agreed by the International Union of Pure Applied Chemistry, IUPAC, in 1985 and now recognises more periods and elements than Dimitri  Mendeleev knew in his day but still all fitting into his concept of  the "Periodic Table" in which Iridium is just one element that can be found.
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The Element Iridium

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