SILICON

HISTORY

• Used by the Egyptians in 1500 BCE
• Silicon was isolated as an element in 1824
• Jons Berzelius a Swedish Chemist discovered the element
• It was used in Egypt but where it was discovered is not known

HISTORY

• It was used for the manufacturing of glass containing silica
• A civilization used silicon because they made glass
• Origin of silicon is the latin word silex (flint) or silicis (Hard Stone)
• The language is Latin
• The element symbol is Si

SOURCES

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• It is mined because we get it directly from the ground
• It has little processing of compounds from nature

SOURCES

• It makes up 27.7% of the earth
• It is the second most abundant element in the crust
• It is the seventh most abundant element in the universe

PROPERTIES

• Its physical state is a solid
• Its melting point is 1410.0 degrees celsius
• Its boiling point is 2355.0 degrees celsius
• Its density is 2.329g/cm cubed

PROPERTIES

• It is a reactive element
• It reacts with halogens
• Silicon in pure form is worth $5.40 per 100g
• Silicon in bulk form is worth $0.14 per 100g

UNIQUE PROPERTIES

• It is an octahedral crystalline with similar physical and
• Chemical similarities to the dimond form of carbon
• Seventh most abundant element in the universe