核心科学

原子半径

Atomic radius is part of the shared Mendeleev scientific core. This page is intentionally conservative until more native-language terminology is verified.

为什么科学家关心它

Atomic radius is part of the shared Mendeleev scientific core. This page is intentionally conservative until more native-language terminology is verified.

一个具体例子

A sodium atom is larger than a chlorine atom in the same period because effective nuclear attraction increases across the row.

值得注意

当一个定义与可测量或可观察的现象连接起来时,科学才真正容易记住。

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.