Promethium Hats
Description: A gripping Promethium design. Promethium, originally prometheum, is a chemical element with the symbol Pm and atomic number 61. All of its isotopes are radioactive; it is one of only two such elements that are followed in the periodic table by elements with stable forms, a distinction shared with technetium. Chemically, promethium is a lanthanide, which forms salts when combined with other elements. Brought to you by Periodic-Tees.com
Description: A dark brown square with white text featuring the element symbol 'Pm' prominently. It includes the element's name 'Promethium', atomic number '61', atomic mass '535.49 (145)', electron configuration '[Xe] 6s² 4f5', and 'Lanthanide'. Oxidation states '+3' and '+2' are displayed vertically.
Description: A minimalist, science-themed graphic featuring two green periodic table tiles for Praseodymium (Pr) and Promethium (Mr) with the labels "PROJECT" and "MARY" beneath them. Below the tiles, the word "HAIL" is written in large light blue letters, followed by "PROJECT HAIL MARY" in a smaller stylized font.
