Astatine

1) Greek word for unstable, astatos2) No basic uses for it yet3) Weighs as much as 5 american nickels4) Has the longest living isotopes5) The rarest element on earth6) May be used to kill off cancer cells

Summary:Astatine is a rare radioactive element that is on radioactive decay of some heavier elements. It was discovered by Dale R. Carson, K.R. MacKenzie and Emilio Segrè in the University of California in year 1940. They used a machine called a "Cyclotron" that accelerated particles called "Alpha Particles" which created the the element Astatine. It is also a hologen and a non-metal.

Facts:

Astatine

by Ky Moore

 Group Number: 17Period Number: 6Group Name: HalogenMelting Point: 575 K (302°C or 576°F)Atomic Number: 85Atomic Weight: 210Boiling Point: Unknown Neutrons and Protons: 85