write a short note on the structure of Graphite
Answers
Answer:
Its physical and chemical properties make it a unique chemical substance. The mineral graphite is steel gray to black in color and is odorless. ... This gives the graphite crystals a hexagonal shape. Different layers of this element are stacked together and held by weak covalent forces to form a giant covalent structure.Graphite has a giant covalent structure consisting of layers of carbon atoms. Carbon atoms have 4 valence electrons that are available for bonding. In graphite, each carbon atom is covalently bonded to 3 other carbon atoms. Therefore, every carbon atom has 1 electron that is not used for bonding.
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Graphite :
☞ It occurs naturally in this form and is the most stable form of carbon under standard conditions.
☞ Under high pressures and temperatures it converts to diamond.
Properties :
◉Density: 2.09–2.23 g/cm3
◕Optical properties: Uniaxial
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