14 Si Silicon 28,085 u

Silicon

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Période
3
Groupe
14
Bloc
p-bloc
Phase (STP)
Solid

Silicon is the second most abundant element in Earth's crust after oxygen. It is the foundation of modern electronics and semiconductor technology.

Apparence: Crystalline, reflective with bluish tinge

Propriétés physiques

Masse atomique 28.085 u
Densité 2.3296 g/cm³
Point de fusion 1413.8 °C
Point d'ébullition 3264.8 °C
Phase à STP Solid
Rayon atomique 111.0 pm

Propriétés électroniques

Électronégativité 1.9
Énergie d'ionisation 786.5 eV
Affinité électronique 133.6 eV
Électrons de valence 4

Configuration électronique

Configuration [Ne] 3s² 3p²

Electron Shell Configuration

Silicon electron shell configuration Si 2e⁻ 8e⁻ 4e⁻

Position in Periodic Table

Silicon position in the periodic table Si

Découverte

Découvert par: Jons Jacob Berzelius
Année: 1824

Tableau périodique

Lanthanides Actinides

Compounds Containing Silicon

Plus de Métalloïde

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Frequently Asked Questions

What is Silicon?
Silicon (Si) is a chemical element with atomic number 14. It is a solid at standard temperature and pressure, classified as a métalloïde.
What are the key properties of Silicon?
Silicon has an atomic mass of 28.085 u, density of 2.3296 g/cm³, melting point of 1413.8°C, boiling point of 3264.8°C.
What is the electron configuration of Silicon?
The electron configuration of Silicon is [Ne] 3s2 3p2. It is in the p-block of the periodic table.
Who discovered Silicon?
Silicon was discovered by Jons Jacob Berzelius in 1824.
What is the electronegativity of Silicon?
Silicon has an electronegativity of 1.9 on the Pauling scale.