General Information
| Symbol: | Ir |
| Atomic Number: | 77 |
| Atomic Weight: (Atomic Mass, Molar Mass) | 192.217 |
| Group: | 9 (cobalt family) |
| VIIIA (Old IUPAC), VIII (CAS) |
| Period: | 6 |
| Block: | d |
Physical Properties
| Density: | 22.4 g/cm3 |
| Atomic Volume: | 8.54 cm2/mole |
| Atomic Radius: | 1.36 angstroms |
| Covalent Radius: | pm |
| Radioactive: | No |
States
| Melting Point: | 2410.0 °C |
| Boiling Point: | 4130.0 °C |
| Heat Of Fusion: | 26.36 kJ/mole |
| Heat Of Vaporization: | 563.58 kJ/mole |
Energy
| Electronegativity: | 2.2 (Pauling Scale) |
| Electron Affinity: | -30 kJ/mol |
| 1st Ionization Energy: | 880 kJ/mol |
| Specific Heat Capacity: | 0.13 J g−1 K−1 |
| Thermal Conductivity: | 147.0 W·m−1·K−1 |
Electrons & Oxidation
| Oxidation States: | +4,3,6 |
| Electrons Per Shell: | 2 8 18 32 15 2 |
| Electron Configuration: | [Xe] 4f14 5d7 6s2 |
| 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d7 6s2 |
| 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d7 6s2 |
History
| Discovered In: | 1803 |
| Discovered By: | Smithson Tennant, Antoine Fourcroy, Louis Vanquelin, Hippolyte Collet-Descotils |
| Discovered At: | England, France |
| Word Origin: | From the Greek word "iris" meaning "rainbow" |
Translations
| English | Iridium |
| Deutsch | Iridium |
| Lëtzebuergesch | Iridium |
| Nederlands | Iridium |
| Afrikaans | Iridium |
| Frysk | Iridium |
| Dansk | Iridium |
| Svenska | Iridium |
| Norsk | Iridium |
| Íslenska | Iridín |
| Føroysk | Iridium |
| Latin | Iridium |
| Français | Iridium |
| Español | Iridio |
| Catalana | Iridi |
| Occitana | Iridi |
| Português | Irídio |
| Galego | Iridio |
| Italiano | Iridio |
| Furlan | Iridi |
| Român | Iridiu |
| Moldavian | Iridiu |
| Armãneashte | Iridiumu |
| Русский | Иридий |
| Українска | Iридій |
| by | Iрыдый |
| Polska | Iryd |
| Kaszëbsczi | Jirid |
| Čech | Iridium |
| Slovenský | Iridium |
| Slovenščina | Iridij |
| Hrvatska | Iridij |
| Српски | Иридиjум |
| Bosnian | Iridij |
| Македонски | Иридиум |
| Български | Иридий |
| Lietuviškai | Iridis |
| Lao | Irīdijs |
| Sudovian | Iridijan |
| Cymraeg | Iridiwm |
| Gaeilge na hÉireann | Iridiam |
| Gàidhlig na h | Iridiam |
| Gaelg Vanninagh | Iriddjum |
| Cornish | Yrydyum |
| Brezhoneg | Iridiom |
| Ελληνική | Ιριδιο |
| Shqip | Irid |
| Ossetian | Иридий |
| Euskera | Iridioa |
| Georgian | ირიდიუმი |
| Suomi | Iridium |
| Eesti | Iriidium |
| Magyar | Irídium |
| Türkçe | İridyum |
| Kazakh | Иридий |
| Uzbek | Иридий |
| Tajik | Iridi' |
| Mongolian | Ириди |
| 日本語 | イリジウム [irijiumu] |
| 中国话 | 銥 |
| ไทย | อิริเดียม |
| Vietnamese | Iriđi |
| Bahasa Melayu | Iridium |
| العربيه | إريديوم |
| Il-Malti | Iridjum |
| עברית | אירידיום |
| Esperanto | Iridio |
Links
Misspellings: uridium, jridium, kridium, oridium, 9ridium, 8ridium, ieidium, ididium, ifidium, itidium, i5idium, i4idium, irudium, irjdium, irkdium, irodium, ir9dium, ir8dium, irisium, irixium, iricium, irifium, iririum, irieium, iriduum, iridjum, iridkum, iridoum, irid9um, irid8um, iridiym, iridihm, iridijm, iridiim, iridi8m, iridi7m, iridiun, iridiuk, iridiuj, ridium, iidium, irdium, iriium, iridum, iridim, iridiu, riidium, iirdium, irdiium, iriidum, iriduim, iridimu, iiridium, irridium, iriidium, iriddium, iridiium, iridiuum, iridiumm
