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Definition of the Francium Element
An extremely unstable
radioactive element of the alkali metals, produced artificially
from actinum or thorium, having approximately 19 isotopes, the
most stable of which is Fr 223 with a half-life of 21 minutes.
Origin / Meaning of the name Francium
The name originates from
its country of origin - France
Classification of the Francium Element
Francium is
classified as an "Alkali Metal" and located in Group 1 elements of
the Periodic Table. An Element classified as an Alkali Metal is a
very reactive metal that does not occur freely in nature. Alkali
metals are soft, malleable, ductile, and are good conductors of
heat and electricity.
Facts about the History of the Francium
Element
Francium was discovered by
Marguerite Derey of the Curie Institute in Paris
in 1939.
Occurrence the Francium Element
Obtained from the decay of
actinium
Naturally occurs in uranium minerals
Less than one ounce of francium in the crust of the earth at any
one time
Has the highest equivalent weight of any element
There are 33 known isotopes of francium
Uses of Francium
No known uses
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