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10 Cards in this Set
- Front
- Back
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what are allotropes? |
forms of an element that exist in same state but atoms are arranged diffrently |
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what is a diamond made up of? properties? |
allotrope made up on carbon shiny t transperent high melting point |
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uses for diamond? |
IN JEWRELLRY becuase when cut by experts it will seperate and reflect light in a attractive way - cutting tools because of its hardness and high melting point e.g heavy duty drill bits - these stay sharper for longer |
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bonding and structure of diamond? |
- giant molecular structure - each carbon atom covalently bonded with 4 carbon atoms - alot of energy needed to seperate atoms in diamond, because bonds are strong and may of bonds |
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diaonds and electricyty? |
no electrons - doesnt conduct electricty |
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use of graphite? |
used in pencils |
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properties of graphite? what is griphite? |
shiny hgh melting point opaque |
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stucture and bonding of graphite? |
giant molecule structure strong cavalent bonds - alot of energy needed to break seperate atoms - each carbon atoms is bonded to 3 carbon atoms |
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why is graphite slippery? |
- layers of carbon atoms - layer slide over each other easily because thre are only weak forced between them |
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graphite and electrict? |
free electrons - so conduct electricy - electrons can move through graphite carrying charge from place to place and allowing graphite to conduct electricty |
