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Halogens

Alex Berrill

On Group VII and its elements

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Across
2.The colour of iodine in an organic solvent
4.The ability of a substance to turn into a gas; decreases down Group VII
6.Successful test for the halide bromine produces precipitate of this colour
7.Aqueous, second compound used in the testing of halides (2 Words)
10.(pale) The colour of chlorine in an organic solvent
11.An ion of a Group VII element
12.Successful test for the halide chlorine produces precipitate of this colour
13.Successful test for the halide bromine produces precipitate of this colour
15.Reaction where the same element is oxidised and reduced
16.Dilute, first compound used in the testing of halides (2 Words)
17.Name given to Group VII elements due to their readiness to form salts
Down
1.(____-yellow) The colour of bromine in an organic solvent
3.The ability to attract bonding electrons in a covalent group; decreases down Group VII
5.Does not dissolve in concentrated ammonia (aq) (2 Words)
7.Dissolves to form a colourless solution in concentrated ammonia (aq) (2 Words)
8._____ reaction; more reactive Group VII elements do this to less reactive Group VII compounds
9.Dissolves to form a colourless solution in dilute ammonia (aq) (2 Words)
14.Group VII element used to kill bacteria in pools, for example

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