晶体结构的最小单元,就像生物体内的细胞那样,我们称它为晶胞。如果你仔细观察过食盐,就会发现不管多小的食盐颗粒都是立方体!这是因为它们的晶体结构就是正方体。虽然氯化钠的化学分子式NaCl显示,钠和氯是一对一模武。但实际上,一个钠周围会结合6个氯,同样一个氯也结合着6个钠。 The smallest unit of a crystal structure, just like cells in a living organism, we call it a unit cell. If you look carefully at the salt, you will find that no matter how small the salt grains are, it is a cube because their crystal structure is a cube. Although sodium chloride’s chemical formula NaCl shows that sodium and chlorine are one-for-one moderates. But in fact, a chlorine around the combination of six chlorine, the same chlorine also combined with six sodium.