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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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
Ionic bonding · NSSCO Chemistry · namstudy