4 Be Beryllium 9,0122 u

Beryllium

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Periode
2
Gruppe
2
Block
s-Block
Phase (STP)
Solid

Beryllium is a lightweight alkaline earth metal with high stiffness. It is used in aerospace materials and X-ray windows.

Erscheinungsbild: White-gray metallic

Physikalische Eigenschaften

Atommasse 9.0122 u
Dichte 1.85 g/cm³
Schmelzpunkt 1286.8 °C
Siedepunkt 2468.8 °C
Phase bei STP Solid
Atomradius 112.0 pm

Elektronische Eigenschaften

Elektronegativität 1.57
Ionisierungsenergie 899.5 eV
Valenzelektronen 2

Elektronenkonfiguration

Konfiguration [He] 2s²

Electron Shell Configuration

Beryllium electron shell configuration Be 2e⁻ 2e⁻

Position in Periodic Table

Beryllium position in the periodic table Be

Entdeckung

Entdeckt von: Louis Nicolas Vauquelin
Jahr: 1798

Compounds Containing Beryllium

Mehr Erdalkalimetall

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Frequently Asked Questions

What is Beryllium?
Beryllium (Be) is a chemical element with atomic number 4. It is a solid at standard temperature and pressure, classified as a erdalkalimetall.
What are the key properties of Beryllium?
Beryllium has an atomic mass of 9.0122 u, density of 1.85 g/cm³, melting point of 1286.8°C, boiling point of 2468.8°C.
What is the electron configuration of Beryllium?
The electron configuration of Beryllium is [He] 2s2. It is in the s-block of the periodic table.
Who discovered Beryllium?
Beryllium was discovered by Louis Nicolas Vauquelin in 1798.
What is the electronegativity of Beryllium?
Beryllium has an electronegativity of 1.57 on the Pauling scale.