Chemistry AQA AS Unit 2 Group 2

Made these notes for my year 12 summer exam to revise and read over. There are spelling mistakes in most of my files but due to the busy exam schedule I had no time to correct them (sorry).

Most files have more information than what is needed but I feel it helps you feel more confident walking into the exam if you have a greater knowledge background and may help when having to apply knowledge to questions. Good luck :)

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  • Created by: Chelcie
  • Created on: 02-09-13 13:33
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Group 2







Two electrons in outer (s-orbital) shell

Size of atoms get bigger going down the group as the number of filled energy shells
increase causing less nuclear attraction between the outer electrons and the nucleus.

Metals with high melting points (giant metallic structure)…

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E.G. M (s) + 2HO (l) M(OH) (aq) + H (g)
Or with steam more rapidly: Mg (s) + HO MgO (s) + H (g)

Solubility of Hydroxides
As we go down the group, they become more soluble. (From low solubility to HY solubility)
Hydroxides are all white solids.



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