លទ្ធផលស្វែងរក

nonmetal In Indium indigo blue 49 &114.8183114.818(3) 13 5 Other metal Ir Iridium Greek iris (rainbow) 77 &192.2173192.217(3) 9 6 Transition metal K ប៉ូតាស្យូម...

The mass of the International Prototype Kilogram, a cylinder of platinum-iridium alloy kept at the International Bureau of Weights and Measures near Paris...