Giant Covalent Compounds

  • Created by: Gregory B
  • Created on: 07-06-18 09:11

Diamond      Image result for diamond structure diagram

4 Covalent Bonds  - Carbon has 4 electrons in the outer shell so makes 4 covalent bonds.

Rigid structure  - This makes diamond hard.

High melting point  - Covalent bonds are strong so it takes a lot of energy to break them.

Won't conduct electricity  - There are no free electrons or ions.

Silicon Dioxide   Image result for silicon dioxide structure diagram

Rigid structure  - This makes silicon dioxide hard.

High melting point - Strong covalent bond

Won't conduct electricity  - There are no free electrons or ions.

Allotropes - same thing in different forms e.g.  Graphite, charcoal, and diamond are all allotropes of carbon.

Graphite    Image result for graphite structure diagram (http://2.bp.blogspot.com/-oqvE1o8n0i0/VCV6slcqunI/AAAAAAAAAKU/-F6Y5O9beoc/s1600/graphite.gif)

Strong covalent bonds between carbon atoms. Weak intermolecular forces between the layers.

3 covalent bonds - 3 of 4

Comments

Mrs Keller

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Very detailed! Good notes!