What are the three types of chemical bond?

  1. Ionic bonds.
  2. Covalent bonds.
  3. Metallic bonds.

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What is an ionic bond?


An ionic bond is the electrostatic attraction between a positive ion and a negative ion. 

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Why do atoms form ions?

Atoms form ions so that they gain a full outer shell of electrons, which makes them more stable.

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Describe how an ionic bond forms between a metal atom and a non-metal atom.

  1. The metal atom will transfer one or more electrons to the non-metal atom so that both have full outer shells.
  2. This will make the metal a positive ion, and the non-metal a negative ion.
  3. The two oppositely charged ions will then be strongly attracted by electrostatic forces.
  4. This electrostatic attraction is called an 'ionic bond'.

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What is a dot and cross diagram?

(this diagram shows ionic bonding)


A diagram that shows ionic or covalent bonding by showing how the electrons are involved in the bond.

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