15 8
Metals such as iron are good conductors of electricity and have a high melting point. (a) Use a labelled diagram to describe metallic bonding.
................................................................................................................................................... ................................................................................................................................................... .............................................................................................................................................. [2] (b) Iron has a high melting point and is a good conductor of electricity. Explain both of these properties of iron. Use ideas about structure and bonding. ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... .............................................................................................................................................. [2]
Š OCR 2015
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