RU has various meanings in the Britannica category. Discover the full forms, definitions, and usage contexts of RU in Britannica.
Chemical symbol Ru. A white metal noted for its hardness; the most expensive of the platinum group. OR Symbol:"Ru" Atomic Number:"44" Atomic Mass: 101.07amu. Ruthenium is one of the transition elements. One of the members of the platinum group, this white metal can be found in alloys and corrosion resistant metals.
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