![]() Iridium is a very dense metal having a silvery white metallic appearance.Physical properties of iridium are mentioned below. The physical and chemical properties of iridium element are mentioned below. It is very difficult to machine iridium metal as it is very hard.Iridium is the 2nd most dense metal on the periodic table after osmium.Its concentration in earth’s crust is approximately 0.4 parts per billion. Iridium is available in very rare quantities in the earth’s crust.Iridium was discovered by Chemist Smithson Tennant in 1803.The name “Iridium” was derived from the Latin word “Iris”, which means rainbow.Interesting facts about iridium element are mentioned below. In order to have the complete d-orbitals, there must be 10 electrons in it.īut in the ground state electronic configuration of iridium, you can see that it has only 7 electrons in d-orbitals.Īnd hence, as Iridium has incomplete d-orbitals, it is considered as a transition metal. Protons 77 Neutrons 115 Electrons 77 Symbol Ir Atomic massĢ, 8, 18, 32, 15, 2 Electronic configuration 4f 14 5d 7 6s 2 Atomic radiusĢ02 picometers (van der Waals radius) 1st Ionization energy 9.1 eV ElectronegativityįCC (Face centered cubic) Melting point 2719 K or 2446 ☌ or 4435 ☏ Boiling point 4403 K or 4130 ☌ or 7466 ☏ Density 22.56 g/cm 3 Main isotope 193Ir Who discovered Iridium and when? Smithson Tennant in 1803 CAS number īecause, there are only seven electrons in the d-orbitals (here 5d orbitals). Silvery white metallic appearance State (at STP) Solid Position in Periodic table Iridium Element (Ir) Information Appearance So if you want to know anything about Iridium element, then this guide is for you. ![]() In fact, the table mentioned below is the perfect information box (Which gives you every single detail about the Iridium element in Periodic table.) This is a SUPER easy guide on Iridium element.
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