44Ru

Ruthenium

Transition Metal

Ruthenium (Ru) is element 44, a transition metal, in period 5 and group 8 of the periodic table. Its standard atomic weight is 101.07, it melts at 2334 °C and boils at 4150 °C. Discovered by Karl Ernst Claus, 1844.

Atomic Number44

SymbolRu

NameRuthenium

Atomic Weight101.07 u

CategoryTransition Metal

Period5

Group8

Melting Point2334 °C

Boiling Point4150 °C

Density12.37 g/cm³

Electron Config[Kr] 4d7 5s1

Discovered ByKarl Ernst Claus, 1844

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