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稀有气体,称作惰性气体、贵重气体,俗称黄金气体,它在空气中含量很少,其分离提取是世界性的难题。常说的稀有气体有6种:氦(He)、氖(Ne)、氩(Ar)、氪(Kr)、氙(Xe)和具放射性的氡(Rn)。其中的氪和氙,是半导体、高纯金属工业、化学成分分析、特殊电光源等应用领域的重要原料,或工艺过程中必须采用的保护气体,在现代科技与工业发展中有十分重要的作用。
Rare gas, known as inert gas, expensive gas, commonly known as gold gas, it is little in the air, its separation and extraction is a worldwide problem. Often said there are six kinds of rare gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) and radioactive radon (Rn). Among them, krypton and xenon are important raw materials in the fields of semiconductors, high-purity metal industries, chemical composition analysis, special electric light sources, etc., or protective gases that must be used in the process and play an important role in the development of modern science and technology and industry .