Ideas and Context Chemistry Revision

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  • Created by: Maria
  • Created on: 30-04-12 10:03

1) What ions do group 7 elements form?

Charge of -1

2) What is the state and colour at room temperature of :Cl,Br,I ?

Chlorine - Gas (Yellow/Green) Bromine - Liquid (Brown) Iodine - Solid (Purple)

3) Describe trends of melting points going down group 7.

As you go down the periodic table , the melting point increases.

4) Describe the trend in density going down group 1?

As you go down the density increases.

5) How are halogens similar to eachother?

  • All form salts with alkili metals. ( ionic compounds )
  • diatomic…


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