Bonding - (CCEA)Ions

Atoms and ions bond with each other in three main ways – ionic bonds, covalent bonds and metallic bonds. Different types of bonds form different types of structures – lattices and molecules.

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Ions

tend to lose or gain to form a full outer shell.

An is a charged particle. They are formed when atoms gain or lose electrons to form a full outer shell. Ions are charged because the number of is different from the number of electrons.

A is a particle made of more than one atom that has an overall positive or negative charge.

Simple ions have full outer shells, and the stable of the .

Higher tier

  • A negative ion is called an .
  • A position ion is called a .
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Forming negative and positive ions

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