SILICON

• It’s a metaloid chemical element

• Its atomic number is 14

• It’s from the 14 group on the periodic table

• It’s a tretel (element in the carbon group of the periodic table)

• Its symbol is Si

• Electric conductivity: semiconductor

• State(natural form): solid.

• Aspect: between grey and dark blue.

• Melting point:16,7oK / 1413,85oC

• Boiling point: 31,3oK / 2899,85oC

• Density: 2,33 g/cm3

• Atomic Volume: 12,06 cm3/mol

SILICON-PROPERTIES

• Discoverer: Jöns Jacob Berzelius.

• It was discovered in Suecia.

• Year of the discover: 1824.

SILICON-ORIGINS

SILICON-USES

• Microprocessor

• As a fireproof material: Ceramics

• In agriculture as a fertilizer.

• In alloys.

• In lasers.

• It’s used in medicine.( breastimplants and a contact lents).

• Streams of sand are used in wafer.

• In this process, wafers can be used again in new electronic components.

SILICON-RECYLING