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一、概述硫的化学活性很强,除氮、碘、金、铂、铱等少数元素外,所有元素均能和硫直接化合。硫与正电性很高的金属可形成离子型化合物,其化合价显示为-2价;与负电性略小的金属和非金属化合时,主要生成共价化合物,其表观化合价为+2、+4和+6价。硫和氢可化合成多种的二元化合物,其中硫化氢H_2S尤属重要;正电性较高的元素与硫生成硫化物,这些硫化物大多
First, an overview of the strong chemical activity of sulfur, in addition to nitrogen, iodine, gold, platinum, iridium and a few other elements, all elements can be directly combined with sulfur. Sulfur and the highly electropositive metals form ionic compounds with valences of -2; with slightly negatively charged metals and nonmetallics, covalent compounds are mainly formed with an apparent valence of +2, +4 and +6 price. Sulfur and hydrogen can be synthesized into a variety of binary compounds, of which hydrogen sulfide H 2 S is particularly important; elements with higher electropositive and sulfur to generate sulfides, most of these sulfides