Berillium
4
Be
Groep
2
Periode
2
Blok
s
Protrone
Elektrone
Neutrone
4
4
5
Algemene Eienskappe
Atoom Nommer
4
Atoommassa
9,012182
Massa Nommer
9
Kategorie
Aardalkalimetale
Kleur
Leiklipgrys
Radioaktief
Nee
From the Greek word beryllos, beryl
Kristalstruktuur
Eenvoudige seshoekige
Geskiendenis
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.
Elektrone per skil
2, 2
Elektronkonfigurasie
[He] 2s2
Emerald is a naturally occurring compound of beryllium
Fisiese Eienskappe
Fase
Soliede
Digtheid
1,85 g/cm3
Smeltpunt
1560,15 K | 1287 °C | 2348,6 °F
Kookpunt
2742,15 K | 2469 °C | 4476,2 °F
Heat of Fusion
7,95 kJ/mol
Heat of Vaporization
297 kJ/mol
Spesifieke Hitte Kapasiteit
1,825 J/g·K
Oorvloed in die aardkors
0,00019%
Oorvloed in die heelal
1×10-7%
CAS Nommer
7440-41-7
PubChem CID Nommer
5460467
Atomiese Eienskappe
Atoom radius
112 pm
Kovalente Radius
96 pm
Elektronegatiewiteit
1,57 (Pauling scale)
Ionisasie potensiaal
9,3227 eV
Atoom volume
4,9 cm3/mol
Termiese geleidingsvermoë
2,01 W/cm·K
Oksidasiestate
1, 2
Toepassings
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
Isotope
Stabiele Isotope
9BeOnstabiele Isotope
5Be, 6Be, 7Be, 8Be, 10Be, 11Be, 12Be, 13Be, 14Be, 15Be, 16Be