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44 Ru Ruthenium

Transition metal, mass: 101.07 u, 7 stable isotopes (96, 98-102, 104), abundance rank (earth/space): 71/46

Click image to magnify. Pure etched ruthenium, 1.8 grams. Original size in cm: 1 x 1.5
Ruthenium front Ruthenium back
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
Ruthenium crystal, 0.6 grams, 0.6 x 1.3 cm size. Ruthenium crystallizes hexagonal.


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The images are licensed under a Creative Commons Attribution 3.0 Unported License, unless otherwise noted. Attribution by linking (outside of the internet credit with url) to the according element page.


Page last changed on March 05. 2016

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