Astatine is a radioactive chemical element with the chemical symbol At and atomic number 85. It occurs on Earth as the result of the radioactive decay of certain heavier elements
Symbol: At Electron configuration: Xe 4f14 5d10 6s2 6p5 Atomic number: 85 Melting point: 575.3°F (301.8°C) Discovered: 1940 Atomic mass: 210 u Chemical series: Period 6 element, Metalloid, Halogen
ASTATINE IS RADIO ACTIVE. CANT BE SEEN WITH HUMAN EYE BECAUSE ITS RADIO ACTIVE.
This is a recap of what we have learn of the element astatine.