Beryllium, Be, is an Alkaline Earth element, found in
of the periodic table.
Atomic Number : 4
Atomic Mass : 9.012
Beryllium and its compounds are highly toxic and must be handled with caution.
Beryllium was discovered by L N Vauquelin in 1797AD.
Beryllium was isolated by Wohler and Bussy in 1828AD.
Beryllium is not very abundant but occurs in several minerals.
Its principal ore is Beryl, Be3Al2Si6O18.
Beryllium is also present in the precious stones : Aquamarine and Emerald.
a hard silver-white metal of low density and high melting point,
is an excellent conductor of heat,
does not react with water even at dull red heat and
is resistant to attack by Nitric Acid, HNO3.
Beryllium is used
in the manufacture of Beryllium Bronze alloys, which have high electrical conductivity and are very hard with high tensile strength,
as the window in X-Ray tubes, and
as a source of neutrons when bombarded with alpha-particles.
9 Be4 + 4He2 ==> 12 C6 + 1n0
Start of Hypertext
Hypertext Copyright (c) 2000 Donal O'Leary. All Rights Reserved.