Astatine


 * Element Name:** Astatine


 * Element Symbol:** At


 * Atomic Mass:** 210


 * Atomic Number:** 85


 * Protons**: 85


 * Electrons**: 85


 * Discovery**: Dale R Carson, K.R. Mackenzie, and Emilio Segrè at University of California.


 * How it was Named**: After the greek name that means unstable


 * State of Matter**: Solid


 * Melting Point**: 302°C


 * Boiling Point**: 337°C


 * Characteristics**: color metalic, higly radioactive, and has the color gold in it.


 * Uses of Element**: there is no use for this element outside of scientific reserch due to its half life


 * Interesting Facts**: The group name for At is Halogen and there is only 30 grames of it thats knowen it the world.