|
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.
History of the Periodic Table
Check out the brief
History of the
Periodic Table which details dates and the names of famous
scientists and chemists who contributed to the development of
the Periodic Table.
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 |
