Astatine Hats
Description: A to die for Astatine design. Astatine is a radioactive chemical element with the chemical symbol At and atomic number 85, and is the rarest naturally occurring element on the Earth's crust. It occurs on Earth as the decay product of various heavier elements. All its isotopes are short-lived; the most stable is astatine-210, with a half-life of 8.1 hours. Brought to you by Periodic-Tees.com
Description: A dark background showcases the chemical element Astatine with its atomic number '85' and 'Atomic mass (210)' at the top. The symbol 'At' and the full name 'Astatine' are prominently displayed below. Further details include electron configuration '[Xe] 6s² 4f14 5d10 6p5', 'Electronegativity 2.20', oxidation states '+7,+5, +3, +1, -1', and its classification as a 'Halogen'.
