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Group 7

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Mind Map on Group 7, created by rachbreen on 07/05/2013.
rachbreen
Mind Map by rachbreen, updated more than 1 year ago
rachbreen
Created by rachbreen over 11 years ago
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Resource summary

Group 7
  1. Van der Waals increase down group due to increase in electrons
    1. Boiling points increase.
    2. Reactivity decreases down the group
      1. Atomic radius increases
        1. Shielding increases
          1. Nuclear attraction for other electrons is not as strong
          2. Need to attract an electron to form octet!!! - ion
            1. Halide ions
              1. Chlorine + silver = white precipitate
                1. Soluble in dilute ammonia
                2. Bromine + silver = cream precipitate
                  1. Soluble in concentrated ammonia
                  2. Iodine + silver = yellow precipitate
                    1. Insoluble in concentrated ammonia
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