[mkcoldwolf] 1st Standard Test

[mkcoldwolf]

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• Period number (1 - 7) = number of occupied electron shells
• Group number (I - VII, 0) = number of electrons in the outermost shell
• Left Hand Side: Reactivity increases down the group
• Right Hand Side: Reactivity decreases down the group

1. Group I: Alkali metals
2. Group II: Alkaline earth metals
3. Group II & III: Transition metals
4. Group VII: Halogens
5. Group 0: Noble gases

• Test for chloride ion
  - Add excess dilute nitric acid
  - Add silver nitrate solution
  - White precipitate forms
  - White insoluble silver chloride
• Test

What ore does minerals come from:

• bauxite = aluminium
• copper pyrite = copper
• haematite = iron
• galena = lead

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