Macromolecules

anjumn10
Mind Map by , created over 5 years ago

These are descriptions about Giant Covalent Substances: Diamond Graphite Silicon Dioxide (Sand)

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anjumn10
Created by anjumn10 over 5 years ago
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Macromolecules
1 Diamond
1.1 Each carbon atom
1.1.1 >Strongly bonded to 4 other carbon atoms
1.1.1.1 >In Giant 3D lattice structure
1.2 Hard
1.2.1 Drills
1.2.2 Cutting tools
1.3 Don't conduct electricity
1.3.1 No charged Particles of free electrons
1.4 High melting and Boiling Point.
2 Graphite
2.1 Each Carbon atom
2.1.1 >Strongly bonded to 3 other carbon atoms
2.1.1.1 >turning layers of hexagon
2.2 Weak Forces of Attraction
2.2.1 Between layers
2.2.1.1 So can slide over each other
2.3 Used as:
2.3.1 Pencil leads
2.3.2 lubricant
2.4 3 of outer electrons in each carbon atom.
2.4.1 used to make the covalent bonds
2.5 The fourth electron
2.5.1 delocalised between layers.
2.5.2 Delocalised Electrons
2.5.2.1 Allows graphite to conduct electricity.
2.5.2.2 High Melting and Boiling Point
2.5.2.2.1 Strong Covalent Bonds
2.5.2.2.2 Giant Structure
3 Silicon Dioxide (Sand)
3.1 3D structure like Diamond
3.2 Silicon and oxygen atoms bonded together strongly.
3.3 High Melting and Boiling Point
3.4 NEVER conducts electricity.

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