Iridium was discovered in 1803 among insoluble impurities in natural platinum. Smithson Tennant, the primary discoverer, named the iridium for the goddess Iris, personification of the rainbow, because of the striking and diverse colors of its salts.
Iridium was discovered in 1803 by Smithson Tennant in London, England, among insoluble impurities in natural platinum from South America.
Iridium is normally found in naturally-occurring alloys, which makes the answer not quite either of those things. Iridium in its elemental metallic state is fairly inert chemically, so it's not completely ludicrous that a "nugget" of iridium might be found ... if there weren't so very little of it (it's one of the rarest elements in Earth's crust), so that it's much more likely to be found alloyed with copper or platinum.
26,4 g iridium is equal to 0,137 mol.
Iridium is a chemical element.
Ir(Iridium) is in Group 9.
Buy Iridium, This is Not a Idiom!
The name iridium comes from the latin word "of rainbows". Iridium is most commonly found in meteroites.
After finding Iridium, now he got enough evidence for his theory. That Iridium was from the asteroid that impacted the Earth and caused dinosaurs to perish.
iridium
Iridium
Iridium, Einsteinium
Iridium is normally found in naturally-occurring alloys, which makes the answer not quite either of those things. Iridium in its elemental metallic state is fairly inert chemically, so it's not completely ludicrous that a "nugget" of iridium might be found ... if there weren't so very little of it (it's one of the rarest elements in Earth's crust), so that it's much more likely to be found alloyed with copper or platinum.
Yes, 100% very raidoactive though
I think you are referring to the 'iridium spike' - the Yucatan impactor brought to earth a quantity of iridium that was deposited and is detectable at the K-T boundary (the Cretaceous - Tertiary boundary) wherever this is found round the planet.
iridium
Osmium and iridium are the two elements with highest density.
26,4 g iridium is equal to 0,137 mol.
Lead has a higher atomic number than iridium, which means a lead atom is heavier than an iridium atom. however iridium is denser, therefore if you had a block of iridium and a block of lead,the iridium block would be heavier