1、Allotropism refers to the phenomenon when an element exists in two or more different physical forms or crystal structures.
同素异形性指的是元素以两种或更多不同的物理形态或晶体结构存在的现象。
2、Carbon is a notable example of allotropism, as it can exist as both diamond and graphite.
碳是同素异形性的一个显著例子，因为它可以同时存在于金刚石和石墨两种形态。
