April 2020
Intermediate to advanced
296 pages
5h 20m
English

“So rare ’n’ foul ’n’ tinted blue, the densest of them all,
Though hardest metal on the block, my range of use is small.
I’ve tipped the nibs on pens of old.
For stains and ‘syns’ tetroxide wins . . . despite its blinding pall!”
GROUP 8 TRANSITION METAL
Osmium is the extremely rare17 and bluish-tinted transition metal located at the intersection of row 6 and group 8 on the periodic table. Osmium was first isolated in 1803 by the English chemist Smithson Tennant (1761–1815). Tennant, struck by the element’s rather ...