Giant ionic structures
I can describe how metal and non-metal ions bond together to form giant ionic structures.
Giant ionic structures
I can describe how metal and non-metal ions bond together to form giant ionic structures.
Lesson details
Key learning points
- Salts form ionic structures because they contain metal and non-metal ions.
- In an ionic structure each positive ion attracts the negative ions and vice-versa.
- Metal ions attract all non-metal ions and vice-versa, they bond to the opposite charged ions that are closest.
- An ionic bond is the electrostatic force of attraction between oppositely-charged ions acting in all directions.
- Ionic substances are 3D lattices with regular arrangements of ions ( in a repeating pattern of +ve and -ve charge).
Keywords
Ionic bond - the electrostatic force of attraction between oppositely-charged ions acting in all directions
Ball-and-stick model - used to represent the atoms and bonds in a chemical compound
Lattice - the regular arrangement of atoms or ions in a 3D space
Common misconception
That the ionic bond is the transfer of electrons and not the electrostatic forces of attraction between the ions. The ball and stick model implies that there is a physical link between the ions.
Ensure that students have a good understanding of how ions are formed and that ionic bond forms when oppostive ions attract; before moving on to dot and cross diagrams for binary ionic substances.
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Lesson video
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Starter quiz
6 Questions
Exit quiz
6 Questions
The electrostatic force of attraction between oppositely-charged ions.
The regular arrangement of atoms or ions in a 3D space.
A compound normally containing a metal ion and a non–metal ion.
An atom or molecule with charge due to the gain or loss of electrons.
