Group 2

AQA AS-level ChemistryTopic 9 of 167 lessons

Revision notes for Group 2 in AQA Chemistry (7404). Every lesson in BrainCake comes with R.E.C.I.P.E. recall steps, a quick check and spaced reviews.

1. Group 2 ElementsGroup 2 metals are called the alkaline earth metals.
2. Physical PropertiesThe atoms get bigger going down the group.
3. Ionisation EnergiesThe reactivity of redox reactions increases down group 2.
4. CalciumSome important compounds of calcium are limestone CaCO3, quicklime CaO and slaked lime Ca(OH)2.
5. Reaction with WaterThe group 2 elements react with water to form alkaline hydroxides with the general formula M(OH)2 and hydrogen gas.
6. Solubility of HydroxidesGroup 2 hydroxides are all white solids.
7. Solubility of SulfatesGroup 2 sulfates are all white solids.

On the specification

• 3.2.2 Group 2, the alkaline earth metals

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