金属与非金属
Metals vs Non-Metals
比较金属和非金属的物理与化学性质，解释金属特性（延展性、光泽、导电性），以及元素在周期表中的位置如何预测其反应活性。
Compare the physical and chemical properties of metals and non-metals, explaining metallic properties (malleability, lustre, conductivity) and how position in the periodic table predicts reactivity
学习证据 / Evidence
- 列出金属（有光泽、可延展、良好导电）和非金属的典型物理性质。
- 基于金属的性质，解释为什么金属用于电线、炊具和建筑。
- 使用元素周期表预测某元素是否可能具有反应活性或惰性。
- 从实际观察的角度解释光泽和延展性分别意味着什么。
- Lists physical properties typical of metals (shiny, malleable, good conductor) and non-metals
- Explains why metals are used in wires, cookware, and construction based on their properties
- Uses the periodic table to predict whether an element is likely to be reactive or unreactive
- Explains what lustre and malleability mean in terms of real-world observations
评估问题 / Assessment
如果{{name}}有一种未知物质，它表面有光泽、可以弯曲而不断裂，并且能导电，{{name}}能否判断它很可能是金属，并解释每种性质如何支持这一结论？
If {{name}} had an unknown substance that was shiny, could be bent without breaking, and conducted electricity, could they identify it as likely a metal and explain how each property points to that conclusion?