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Presentation transcript:

© Oxford University Press 2011 IC1.3.2 Images Images

© Oxford University Press 2011 IC1.3.2 Images If you eat too much salt you are more likely to get heart disease

© Oxford University Press 2011 IC1.3.2 Images Sodium

© Oxford University Press 2011 IC1.3.2 Images Chlorine

© Oxford University Press 2011 IC1.3.2 Images Sodium chloride

© Oxford University Press 2011 IC1.3.2 Images When sodium chloride forms from its elements, each sodium atom transfers one of its electrons to a chlorine atom.

© Oxford University Press 2011 IC1.3.2 Images When sodium chloride forms from its elements, each sodium atom transfers one of its electrons to a chlorine atom.

© Oxford University Press 2011 IC1.3.2 Images Each atom now has eight electrons in its highest energy level. These electron arrangements are very stable.

© Oxford University Press 2011 IC1.3.2 Images Each atom now has eight electrons in its highest energy level. These electron arrangements are very stable.

© Oxford University Press 2011 IC1.3.2 Images Sodium ions and chloride ions are arranged like this

© Oxford University Press 2011 IC1.3.2 Images Sodium ions and chloride ions are arranged like this