What is Ruthenium?
'''Ruthenium''' is a [[chemical element]]. It has the chemical symbol '''Ru'''. It has the [[atomic number]] 44. It is a [[wikt:rare|rare]] [[metal]]. It is silver white. In chemistry it is placed in a group of metal elements named the [[transition metal]]s. It is also part of the [[platinum group]]. Ruthenium is found in [[platinum]] [[ore]]s. Ruthenium is used as a [[catalyst]] in some platinum [[alloy]]s. {{chem-stub}} {{Periodic Table}} {{authority control}} [[Category:Transition metals]]