Origin / Meaning of the name Astatine
The name originates from the Greek word 'astatos' meaning unstable.
Periodic Table Group and Classification of the of the Astatine Element
Elements can be classified based on their physical states (States of Matter) e.g. gas, solid or liquid. This element is a solid. Astatine is classified as an element in the 'Halogens' section which can be located in group 7 of the Periodic Table. The term "halogen" means "salt-former" and compounds containing halogens are called "salts". The halogens exist, at room temperature, in all three states of matter - Gases such as Fluorine & Chlorine, Solids such as Iodine and Astatine and Liquid as in Bromine.
Facts about the Discovery and History of the Astatine Element
Astatine was discovered in University of California, Berkeley, USA by Dale R. Corson, K. R. MacKenzie, and Emilio Segre in 1940.
Occurrence of the Astatine Element
% in Universe N/A
% in Sun N/A
% in Meteorites None
% in Earth's Crust None
% in Oceans None
% in Humans None