Ruthenium vs. Rhodium

Rutheniumnoun

A metallic chemical element (symbol Ru) with an atomic number of 44.

Rutheniumnoun

(countable) An atom of this element.

Rutheniumnoun

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.

Rutheniumnoun

a rare polyvalent metallic element of the platinum group; it is found associated with platinum

Ruthenium

Ruthenium is a chemical element with the symbol Ru and atomic number 44. It is a rare transition metal belonging to the platinum group of the periodic table.

Rhodiumnoun

A rare, hard, silvery-white, inert metallic chemical element (symbol Rh) with an atomic number of 45.

Rhodiumnoun

(countable) A single atom of this element.

Rhodiumnoun

A rare element of the light platinum group. It is found in platinum ores, and obtained free as a white inert metal which it is very difficult to fuse. Symbol Rh. Atomic weight 104.1. Specific gravity 12.

Rhodiumnoun

a white hard metallic element that is one of the platinum group and is found in platinum ores; used in alloys with platinum

Rhodium

Rhodium is a chemical element with the symbol Rh and atomic number 45. It is an extraordinarily rare, silvery-white, hard, corrosion-resistant, and chemically inert transition metal.