Ionic, Covalent and Metallic Bonding

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Presentation transcript:

Ionic, Covalent and Metallic Bonding Supplement

Atoms form bonds Atoms are rarely found on their own in nature (unbonded) Q: Why do atoms form bonds? To complete their outer shell, giving them the same, stable configuration as the noble gases.

Ions align in regular patterns

Watch: Ionic compounds Watch: What are ions? Pause to draw the ions in your workbook Watch: Ionic compounds

High melting points A lot of energy is required to break the strong ionic bonds.

Brittle When struck, layers shift and ions of the same charge line up and repel, forcing the network crystal structure to break.

Most are soluble in water Water has a positive and negative end, so ions are attracted and dissolve.

Conductivity Summary

Conductivity To conduct, there must be free charge carriers, electrons or ions. In both liquids and solutions, ions are free to carry charge.

Review Interactive: Ionic Bonding Tutorial Worksheet: Ionic bonding – True or False? Worksheet: Ionic Bonding Review and Ionic Compounds Properties