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硫是分子还是原子构成的
更新时间: 2020-09-25 00:00:00  

分子的本质还是原子,因此硫属于分子晶体。硫单质最常见的是正交硫和单斜硫,它们的分子式都相同。此外还有弹性硫,分子是长链状,都是分子晶体。判断分子晶体和原子晶体最简单的方法是看熔沸点和硬度。分子晶体熔沸点一般不高,硬度也差。原子晶体熔沸点非常高,硬度也很大,如金刚石、晶体硅、二氧化硅、碳化硅等。

关键词: 分子 还是 原子 构成

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