Must know key words C3e

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  • Created by: Sophie
  • Created on: 23-04-11 13:46

Group 7: Elements classified under group 7 in the periodic table.

Colour and state: What an element looks like.

Halogens: A halogen is one of the highly reactive elements located in group 7 of the periodic table.

Chlorine: green gas, is a Halogen

Bromine: orange liquid, is a Halogen.

Iodine: Grey solid, is a Halogen

Decreasing reactivity:


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