Berilio
4
Be
Grupo
2
Perio
2
Bloko
s
Protonoj
Elektronoj
Neŭtronoj
4
4
5
Ĝeneralaj Propraĵoj
Atoma Nombro
4
Atommaso
9,012182
Amasa Nombro
9
Kategorio
Teralkalaj metaloj
Koloro
Ardezgriza
Radioaktiva
Ne
De la Greka vorto beryllos, berilo
Kristala Strukturo
Simpla Sesangula
Historio
Louis-Nicolas Vauquelin discovered beryllium in the oxide form in both beryl and emeralds in 1798.
Friedrich Wöhler and Antoine Bussy independently isolated beryllium in 1828 by the chemical reaction of metallic potassium with beryllium chloride.
The first commercially-successful process for producing beryllium was developed in 1932 by Alfred Stock and Hans Goldschmidt.
Friedrich Wöhler and Antoine Bussy independently isolated beryllium in 1828 by the chemical reaction of metallic potassium with beryllium chloride.
The first commercially-successful process for producing beryllium was developed in 1932 by Alfred Stock and Hans Goldschmidt.
Elektronoj per ŝelo
2, 2
Elektrona Agordo
[He] 2s2
Emerald is a naturally occurring compound of beryllium
Fizikaj Propraĵoj
Fazo
Solido
Denso
1,85 g/cm3
Fandpunkto
1560,15 K | 1287 °C | 2348,6 °F
Bolpunkto
2742,15 K | 2469 °C | 4476,2 °F
Varmo de Fuzio
7,95 kJ/mol
Varmo de Vaporiĝo
297 kJ/mol
Specifa Varmo Kapacito
1,825 J/g·K
Krusta Abundo
0,00019%
Universa Abundo
1×10-7%
CAS Nombro
7440-41-7
PubChem Kunmetita Identiga Nombro
5460467
Atomaj Propraĵoj
Atoma Radiuso
112 pm
Kovalenta Radiuso
96 pm
Elektronegativeco
1,57 (Pauling-skalo)
Potencialo de jonigo
9,3227 eV
Atoma Volumo
4,9 cm3/mol
Termika Kondukto
2,01 W/cm·K
Oksidaj Ŝtatoj
1, 2
Aplikoj
Beryllium is used in nuclear reactors as a reflector or moderator.
Beryllium metal is used for lightweight structural components in the defense and aerospace industries in high-speed aircraft, guided missiles, space vehicles and satellites.
Unlike most metals, beryllium is virtually transparent to x-rays and hence it is used in radiation windows for x-ray tubes.
Beryllium metal is used for lightweight structural components in the defense and aerospace industries in high-speed aircraft, guided missiles, space vehicles and satellites.
Unlike most metals, beryllium is virtually transparent to x-rays and hence it is used in radiation windows for x-ray tubes.
Beryllium and its salts are toxic and should be handled with the greatest of care
Izotopoj
Stabilaj Izotopoj
9BeMalstabilaj Isotopoj
5Be, 6Be, 7Be, 8Be, 10Be, 11Be, 12Be, 13Be, 14Be, 15Be, 16Be