1. Tm [ Synonyms: atomic number 69, thulium] | |
A soft silvery metallic element of the rare earth group; isotope 170 emits X-rays and is used in small portable X-ray machines; it occurs in monazite and apatite and xenotime
|
Software for Cement/Steel Dealers Custom designed software for cement, steel (iron), t-iron, girder, pai ... Read more