Actinium Hats
Description: A transcendent Actinium design. Actinium is a radioactive chemical element with symbol Ac (not to be confused with the abbreviation for an acetyl group) and atomic number 89, which was discovered in 1899. It was the first non-primordial radioactive element to be isolated. Polonium, radium and radon were observed before actinium, but they were not isolated until 1902. Brought to you by Periodic-Tees.com
Science Te Ac H Er Tellurium Actinium Hydrogen Erbium 6th Grade Teacher Hat
by LEV OF WORLD
$12 $19
Description: The word teacher spelled with periodic table element tiles: Tellurium, Actinium, Hydrogen and Erbium, with an atom and a lab flask. A retro 70s chemistry graphic for science teachers.
TeAcHEr Periodic Table Elements Retro Science Teacher Hat
by Narazed
$12 $19