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当硫与氢结合成硫化氢(H_2S)分子时,二个氢原子各给硫原子一个电子,得到带两个阴电荷的硫离子(S~=)及两个一个阳电荷的氢离子H~+。氢离子被硫离子所吸引,生成硫化氢分子(H_2S): 2H~++S~==H_2S………………(1) 但硫原子不仅能吸入电子,也能放出自己外层的电子,变成阳离子。例如,硫与氧化合时,硫带有阳电荷,而氧带有阴电荷。如: S~(+6)+3O~==SO_3………………(2) 硫原子最外层有6个电子,每个氧原子吸入两个电子,结果硫原子变成+6价,氧变成负2价。但有时硫原子不一定将它全部的价电子放出,却只放出四个电子。例如在SO_2分子组成
When sulfur and hydrogen combine into hydrogen sulfide (H2S) molecules, two hydrogen atoms each give one electron to a sulfur atom, resulting in two negatively charged sulfur ions (S~=) and two positively charged hydrogen ions H~ +. Hydrogen ions are attracted by sulfur ions and generate hydrogen sulfide molecules (H_2S): 2H~++S~==H_2S........(1) But the sulfur atom can not only take in electrons, but also emit electrons in its outer layer. , become cations. For example, when sulphur is oxidized, sulphur carries a positive charge while oxygen carries an anionic charge. For example: S~(+6)+3O~==SO_3........(2) The sulfur atom has six electrons in the outermost layer. Each oxygen atom inhales two electrons. As a result, the sulfur atom becomes +6. Oxygen becomes negative two. However, sometimes the sulfur atom does not necessarily release all its valence electrons, but only four electrons are released. For example, in the composition of SO_2 molecules