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在日常生活里,我们有时遇到“晶体”这东西,究竟“晶体”是什么东西呢?现在我们就来讨论一下。 (一)晶体是什么? 我们知道自然界里的物质都是由98种元素的原子所构成的,而以气体、液体和固体三种不同的形态呈现在我们的面前。气体.液体和固体,这三种物态各有它的物理特性。像气体有大压缩性,液体的形状随容器而变,它们为什么有这些物理特性表现出来呢?这是因为组成它们的分子或原子间的距离不一样的缘放。距离不同,分子或原子相互间的吸引力就不一样,距离愈大,吸引力反而愈小。气体分子相互远离,每一个分子均可自由行动,
In everyday life, we sometimes encounter the “crystal” thing. What is the “crystal”? Now we will discuss it. (a) What is the crystal? We know that the substances in the natural world are made up of 98 elements of atoms and present in three different forms: gas, liquid and solid. Gas. Liquids and solids. The three states of matter have their physical properties. Like gas, there is great compressibility. The shape of the liquid changes with the container. Why do they show these physical properties? This is because the distance between the molecules or atoms that make up them is not the same. Distance is different, and the attraction of molecules or atoms is not the same. The greater the distance, the smaller the attraction. Gas molecules move away from each other, and each molecule can move freely.