Ru*the"ni*um (?), n. [NL. So named from
the Ruthenians, a Little Russian people, as coming from Russia,
the metal having been found in the Ural mountains.] (Chem.)
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.
Ru*the"ni*um (?), n. [NL. So named from
the Ruthenians, a Little Russian people, as coming from Russia,
the metal having been found in the Ural mountains.] (Chem.)
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.
