4 Be Beryllium 9,0122 u

Beryllium

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Période
2
Groupe
2
Bloc
s-bloc
Phase (STP)
Solid

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

Apparence: White-gray metallic

Propriétés physiques

Masse atomique 9.0122 u
Densité 1.85 g/cm³
Point de fusion 1286.8 °C
Point d'ébullition 2468.8 °C
Phase à STP Solid
Rayon atomique 112.0 pm

Propriétés électroniques

Électronégativité 1.57
Énergie d'ionisation 899.5 eV
Électrons de valence 2

Configuration électronique

Configuration [He] 2s²

Electron Shell Configuration

Beryllium electron shell configuration Be 2e⁻ 2e⁻

Position in Periodic Table

Beryllium position in the periodic table Be

Découverte

Découvert par: Louis Nicolas Vauquelin
Année: 1798

Compounds Containing Beryllium

Plus de Métal Alcalino-Terreux

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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 métal alcalino-terreux.
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.