Chemistry·Matter · Bonding · NSSCO 2.4.2
Ionic bonding
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Why do atoms join together? To get a full outer shell. Learn how metals give electrons to non-metals to form charged ions, how to draw dot-and-cross diagrams, why ionic compounds form giant lattices, and the properties that result.
What you'll learn in this lesson
By the end you should be able to (NSSCO Chemistry 2.4.2):
- Explain that atoms bond to achieve a full, stable outer shell (like a noble gas)
- Describe ionic bonding as the transfer of electrons from a metal to a non-metal, forming ions
- Draw dot-and-cross diagrams for simple ionic compounds (e.g. NaCl, MgO)
- Describe the giant ionic lattice structure
- Explain the properties of ionic compounds (high melting points, conductivity, solubility)
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Quick revision
Revise this in 5 minutes
Miss Rachel and Mike talk through the whole topic — with the figure and working drawn live.
Hands-on lab
See ions carry charge in the electrolysis lab