Thulium Phone Cases - iPhone and Android

Description: A super cool Thulium design. Thulium is a chemical element with symbol Tm and atomic number 69. It is the thirteenth and antepenultimate (third-last) element in the lanthanide series. Like the other lanthanides, the most common oxidation state is +3, seen in its oxide, halides and other compounds. Brought to you by Periodic-Tees.com

Description: A square element card from the periodic table with a purple background. It displays the symbol 'Tm' in large white text, with 'Thulium' below it. Further details include atomic number, atomic weight, electron configuration '[Xe] 6s2 4f13', and classification 'Lanthanide'.