a chemical element. Ruthenium is a hard silver-white metal that breaks easily and is found in platinum ores. 钌 Word Originmid 19th cent.: modern Latin, from medieval Latin Ruthenia named after the Ruthenes (from medieval Latin Rutheni), a Slavic people, ancestors of the Ukrainians. The metal was so named because it was discovered in ores from the Urals.
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ruthenium
Chemical elements:actinium, alkali metal, americium...
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