Thulium(III) oxide
Encyclopedia
Thulium oxide is a pale green solid compound, with the formula Tm
2O
3. It was first isolated in 1878 from an impure sample of erbia by Per Teodor Cleve
, who named it thulia.
Thulium
Thulium is a chemical element that has the symbol Tm and atomic number 69. Thulium is the second least abundant of the lanthanides . It is an easily workable metal with a bright silvery-gray luster...
2O
Oxygen
Oxygen is the element with atomic number 8 and represented by the symbol O. Its name derives from the Greek roots ὀξύς and -γενής , because at the time of naming, it was mistakenly thought that all acids required oxygen in their composition...
3. It was first isolated in 1878 from an impure sample of erbia by Per Teodor Cleve
Per Teodor Cleve
Per Teodor Cleve was a Swedish chemist and geologist.After graduating from the Stockholm Gymnasium in 1858, Cleve matriculated at Uppsala University in May 1858, where he received his PhD in 1863...
, who named it thulia.