Astatine is a very rare radioactive chemical element with the chemical symbol At and atomic number 85. It occurs on Earth as the decay product of various heavier ...
This WebElements periodic table page contains the essentials for the element astatine
Astatine's properties, interesting facts, discovery, videos, images, states, energies, appearance and characteristics.
What's in a name? From the Greek word for unstable, astatos. Say what? Astatine is pronounced as AS-teh-teen or as AS-teh-ten. History and Uses: Astatine was produced ...
Element Astatine (At), Group 17, Atomic Number 85, p-block, Mass . Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Astatine (At), astatine radioactive chemical element and the heaviest member of the halogen elements, or Group 17 (VIIa) of the periodic table.
Iodine and astatine complete the group, but are not the subjects of primary consideration for electronics manufacturers.
Properties of astatine. Astatine is the rarest element on Earth. It is a highly radioactive halogen. Chemically, it behaves similarly to other halogens.
Basic information, atomic structure, and table of isotopes.
: a radioactive halogen element discovered by bombarding bismuth with helium nuclei and also formed by radioactive decay—symbol At; called also ekaiodine; see ...