Profpointy
Legendary Member
one of the platinum group metals
It's in the iron column: iron, ruthenium, osmium, so I'd expect it to be chemically rather like iron
The platinum column is two further along: nickel, palladium, platinum
(set myself a little exercise of learning them all, but am a little hazy about the actinides and the mysterious new ones in the very bottom row)
EDIT: it seems "platinum group" is rows 2 and 3 of the iron column to the cobalt column, thus ruthenium, rhodium, and palladium in the 2nd row then osmium, iridium and platinum itself in the 3rd row. Top row metals iron, nickel and cobalt above them don't qualify. It seems to be corrosion resistant unlike iron. My A level recollection of the behaviour down the columns was a bit too superficial
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