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Let's study 3 types of bonding in the I/GCSE chemistry curriculum!
Ionic
- An ionic bond is the electrostatic force of attraction that occurs between two ions.
- It’s strength depends on the charges on ions
- High melting and boiling points
- Soluble in water
- Conduct electricity when in solution or molten
- Between a metal and non-metal
Covalent
- A covalent bond is a shared pair of electrons between the nuclei of two atoms.
- Strength depends on how many shared pairs of electrons
- Have strong bonds between atoms but have weak intermolecular forces.
- Often found as diatomic molecules
- Insoluble in water
- Do not conduct electricity
- Between two non-metals according to the I/GCSE chemistry curriculum
Metallic
The electrostatic force of attraction between the lattice of ions and delocalised sea of electrons
Regular arrangement (lattice) of ions
Surrounded by a delocalised sea of electrons
Conduct electricity and heat because of mobile electrons
Malleable because layers of ions can slide over each other
- Between 2 or more metals
Strength depends on the metal ion and the amount of electrons in the delocalised sea.
End of this topic!
