为什么科学家关心它
Isotopes 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
Hydrogen-1 and deuterium are both hydrogen because each nucleus has one proton, but deuterium also has one neutron.
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。