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9.1 Properties of metals
1. Physical properties of meta […]
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Week 1 answers
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Exercise (week 2)
阅读材料 8.1 Arrangement of ele…
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8.4 Transition elements
The elements between Group II […]
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8.5 Noble gases
All of the noble gases are pre […]
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8.3 Group VII properties
1. Halogens The halogen family […]
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8.2 Group I properties
1. Alkali metals Group I eleme […]
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8.1 Arrangement of elements
1. The structure of periodic t […]
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Exercise (week 1)
阅读材料 10.1 Water 10.2 Fertil…
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10.2 Fertilisers
Plants make their own food by […]