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Atomic Number: 14
Si
Si

Silicon

28.0850 u

Category

metalloid

State at Room Temperature

solid

Electron Configuration

1s² 2s² 2p⁶ 3s² 3p²

Valence Electrons

4

Lewis Dot:••••

Electronegativity

1.9

Pauling scale

Oxidation States

-4-3-2-1+1+2+3+4

Melting Point

1687 K

1413.85°C

Boiling Point

3538 K

3264.85°C

Density

2.329

g/cm³

Position in Table

Group 14Period 3p-block

Discovery

Historical Information

Discovered byJöns Jacob Berzelius
Year1824

Common Uses

Applications & Industries

Semiconductors, glass, concrete, computer chips

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