The Element Iridium

What is Iridium? Element Properties & Periodic Table Info

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Chemical Formulas What is the element Iridium as on the 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. Iridium together with rhodium, ruthenium, palladium, osmium and platinum form a group of elements referred to as the platinum group metals (PGM).

Iridium is notable for being the most corrosion resistant element known. It is unaffected by air, water and acids. The Atomic Number of this element is 77 and the Element Symbol is Ir.

 

Origin / Meaning of the name Iridium
The name "iridium" originates from the Latin word meaning "of rainbows" because of the "variety of colors in the element's salt solutions".

Periodic Table Group and Classification of the of the Iridium Element
Elements can be classified based on their physical states (States of Matter) e.g. gas, solid or liquid. This element is a solid. Iridium
is classified as a "Transition Metal" which are located in Groups 3 - 12 of the Periodic Table. Elements classified as Transition Metals are generally described as ductile, malleable, and able to conduct electricity and heat.Nearly 75% of all the elements in the Periodic Table are classified as metals which are detailed in the List of Metals.

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

History of the Periodic Table
Check out the brief History of the Periodic Table which details dates and the names of famous scientists and chemists who contributed to the development of the Periodic Table.

Occurrence of 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

Ir

The Properties of the Iridium Element
Symbol of Element : Ir
Atomic Number : 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 : 77
Number of Neutrons : 115
Crystal Structure: Cubic
Density @ 293 K: 22.5 g/cm3
Color :
whitish-yellow

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 as on 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 as on the Periodic Table 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.

What is 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 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.

Learn about what is Iridium with these fast facts...
These articles contain facts and information relating to Iridium and each of the other elements including the Periodic Symbol,  group, classification, properties and atomic number which is often referred to as the Periodic Table Number. Test your knowledge of chemistry and the Periodic Table by completing the Element Symbols and Atomic Numbers on our Blank Periodic Table. Chemistry students will also find a helpful section on Chemical Formulas.

What is the Element Iridium

The Elements are the building blocks of Modern Science & Chemistry


 

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