Name:  Silicon

Atomic Symbol and Mass Number: Si [14]

Electron Configuration: [Ne] 3s  3p

Atomic Radii: 210 pm

Electron Affinity: 133.6 kJ mol-1

Oxidation states: +4, +3, +2, +1, -1, -2, -3, -4

Electronegativity value: 1.90

Elemental Group: Carbon Group

Uses and properties:

• Silicon is a hard metalloid.

• Silicon reacts with halogens or dilute alkalis

• Expands as it freezes

• Silicon chips are the basis of modern technology

• Alloyed with aluminum, it is used in engines

• Enhances the magnetic properties of iron

• Important component of steel.

• Silica in sand and clay minerals is used in the production of concrete, bricks, and glass.

• Silicones have high heat-resistance, rubber-like, and non-stick properties widely used iin cookware and insulators

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Lewis diagram: