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Group 7 and Group 2 elements and ions.

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Chemistry Mind Map on Group 7 and Group 2 elements and ions., created by kdavies691 on 22/04/2013.
kdavies691
Mind Map by kdavies691, updated more than 1 year ago
kdavies691
Created by kdavies691 over 11 years ago
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Resource summary

Group 7 and Group 2 elements and ions.
  1. Group 7- The halogens
    1. The elements
      1. Fluorine
        1. Highest electronegativity.
          1. Most reactive
          2. Chlorine
            1. Reacts with sodium hydroxide to make bleach
              1. Reacts with water to make HCl and HClO
                1. Takes part in disproportionation
                2. Bromine
                  1. Iodine
                  2. Halide ion
                    1. With Sulfuric Acid
                      1. NaCl + NaF
                        1. HF or HCl is made.
                          1. Not a redox reaction.
                          2. NaBr
                            1. Makes bromine, Sulphur dioxide and 2 waters.
                              1. A redox reaction
                              2. NaI
                                1. Goes to Iodine, Hydrogen sulfide, Water
                                  1. most powerfull reducing agent.
                                2. With sliver nitrate.
                                  1. NaF = No ppt.
                                    1. NaCl= white ppt.
                                      1. NaBr= Cream ppt.
                                        1. NaI = yellow ppt.
                                        2. -1
                                        3. Boiling points increase.
                                        4. Group 2- The ALKALINE EARTH METALS.
                                          1. Trends
                                            1. Atomic radius
                                              1. Increases down the group
                                              2. Ionisation energy
                                                1. Decreases down the group.
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