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The term ru is a specialized chemical symbol representing the element ruthenium. This rare, silvery-white metal belongs to the platinum group and is primarily discussed in scientific and materials science contexts. Because it is a formal elemental symbol, it functions as a proper noun and is always capitalized when used in chemical formulas or periodic table references. This lesson explores the specific properties of ruthenium, its grammatical role in technical writing, and its relationship to other metals like palladium and osmium. You will also learn about related terms such as ruthenate and ruthenious. Watch the lesson to master the correct usage of this scientific term.

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A scientist examines a sample of ruthenium under a bright light.