Mendeleev
Science
科学地图
化学键与分子
这些页面把常被分开学习的概念连接起来。可以按兴趣选择路径，重点是理解原子结构、可测量性质与物理定律如何相互解释。
Take one idea at a time. If a new word appears, connect it to a concrete object, number or experiment before moving on.
Start with the central idea, then test it against a concrete element or example. A scientific model is useful when we know what it explains — and where its limits are.
Start with the central idea, then test it against a concrete element or example. A scientific model is useful when we know what it explains — and where its limits are.
Start with the central idea, then test it against a concrete element or example. A scientific model is useful when we know what it explains — and where its limits are.