Chemistry > QUESTIONS & ANSWERS > AQA A level Chemistry - Group 2 Already Passed (All)
AQA A level Chemistry - Group 2 Already Passed
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AQA A level Chemistry - Group 2 Already Passed As you go down the group, atomic radius ✔✔increases As you go down the group, ionisation energy ✔✔decreases As you go down the group, melting ... point (WHY) ✔✔generally decreases as the metallic bonding gets weaker due to the atomic radius increasing 3 factors affecting metallic bonding ✔✔1. Charge on ion 2. Atomic radius 3. No. of delocalized electrons in the cloud Be with water ✔✔No reaction Mg with steam ✔✔Mg + H2O(g) > MgO + H2 Mg with water ✔✔Mg + 2H2O > Mg(OH)2 + H2 Ca, Sr and Ba with water ✔✔all follow same reaction pattern Solubility of the hydroxides as you go down the group ✔✔increases Solubility of the sulphates as you go down the group ✔✔decreases Uses of the hydroxides ✔✔Milk of magnesia for indigestion Ca(OH)2 to neutralize acidic soil Uses of the sulphates ✔✔BaSO4 is used in x-rays to allow non-bone structures to be seen [Show More]
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