44 Ru Ruthenium
Transition metal, mass: 101.07 u, 7 stable isotopes (96, 98-102, 104), abundance rank (earth/space): 71/46Click image to magnify. Pure etched ruthenium, 1.8 grams. Original size in cm: 1 x 1.5


Ruthenium is the first of the platinum group metals. It is very hard and brittle and is commonly used in alloys and as a catalyst. Like with osmium, its tetroxide is very toxic, but ruthenium is less reactive than osmium.

Ruthenium crystal, 0.6 grams, 0.6 x 1.3 cm size. Ruthenium crystallizes hexagonal.
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Page last changed on March 05. 2016
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