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Word | Ruthenium |
a rare polyvalent metallic element of the platinum group; it is found associated with platinum / A rare element of the light platinum group, found associated with platinum ores, and isolated as a hard, brittle steel-gray metal which is very infusible. Symbol Ru. Atomic weight 103.5. Specific gravity 12.26. See Platinum metals, under Platinum. / the chemical element of atomic number 44, a hard silvery-white metal of the transition series., | |
Usage | ⇒ To this group belong the important steel alloying elements nickel and manganese, as well as cobalt and the inert metals ruthenium , rhodium, palladium, osmium, iridium and platinum. |
Synonyms | Ru, gold, iron, lead, metal, silver, atomic number 44, actinium, aluminum, americium, antimony, argon, arsenic, astatine, barium, berkelium, beryllium, bismuth, boron, bromine, |
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