Ruthenium is a chemical element with the symbol Ru and atomic number 44. It is a hard, corrosion-resistant metal used in electronics, alloys, and catalysts. The term originates from Ruthenia, the historic region associated with Russia and the Urals, reflecting its discovery-linked geography.
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0:58Rubidium
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1:00Ruthenium
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0:58Solute
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1:07Stoichiometry
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0:59Strontium
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