周期趋势
核心概念
周期趋势. 这是连接许多化学与物理现象的基础概念。
为什么重要
它帮助我们借助模型理解现象，而不只是记忆事实。
帮助理解的图景
先抓住核心概念，再把它与具体元素、测量和实验联系起来。
门捷列夫来解释
Take one idea at a time. If a new word appears, connect it to a concrete object, number or experiment before moving on.
试一试
Say the idea aloud in your own words, then test it with a simple example.
常见误区
Memorising a sentence is not the same as understanding the mechanism behind it.