金属活动性顺序
The Reactivity Series
将常见金属按金属活动性顺序排列，并解释较活泼的金属如何从化合物中置换出较不活泼的金属；说明工业上如何利用碳从金属氧化物中提取金属。
Order common metals in the reactivity series and explain how a more reactive metal displaces a less reactive one; describe how carbon is used to extract metals from their oxides in industry
学习证据 / Evidence
- 能说出常见金属在金属活动性顺序中的排列（从钾到金）
- 能根据两种金属判断置换反应能否发生
- 能解释为什么碳可以从氧化铁中提取铁，却不能从氧化铝中提取铝
- 能将金属活动性顺序与人类使用金属的历史联系起来（金以游离态存在，铁经冶炼获得，铝经电解获得）
- Recalls the order of common metals in the reactivity series (potassium to gold)
- Predicts whether a displacement reaction will occur given two metals
- Explains why carbon can be used to extract iron from iron oxide but not aluminium from aluminium oxide
- Links the reactivity series to the history of metal use (gold found free, iron smelted, aluminium electrolytic)
评估问题 / Assessment
假如{{name}}被问到：为什么人类先使用金和铜，之后才使用铁和铝？{{name}}能否解释金属的活动性如何决定提取的难易程度，以及为什么碳能提取某些金属，却不能提取另一些金属？
If {{name}} was asked why humans used gold and copper before iron and aluminium, could they explain how a metal's reactivity determines how easy it is to extract — and why carbon can extract some metals but not others?