What is Thulium?
[[File:Thulium_sublimed_dendritic_and_1cm3_cube.jpg|thumb|Thulium]] '''Thulium''' (pronounced /ˈθjuːliəm/) is a [[chemical element]] that has the symbol Tm and atomic number 69. It is a [[lanthanide]] element. ==Related pages== *[[Periodic table]] *[[List of common elements]] {{Periodic Table}} {{chem-stub}} [[Category:Lanthanides]]