each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, leading to variation in atomic mass
语法信息
有生性状态
无生命
形态构成
复合词
可数
复数形式
isotopes
例子
Carbon-12 and carbon-14 are isotopes of carbon, with the former having 6 neutrons and the latter having 8 neutrons.
