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惰性气体有哪些??? - …… 氦、氖、氩、氪、氙、氡(其中氡有放射性,一般不讨论) 这些气体位于元素周期表的"零"族.氖、氩、氪、氙、氡最外层电子数为8,氦最外层电子数为2,但它们外层电子都是饱和状态,所以在反应中十分稳定故被称为惰性气体!
稀有气体有几种? ……稀有气体,又称作惰性气体或贵气体,是指元素周期表上的第18族元素(IUPAC新规定,即原来的0族),它们在常温下全部是以单原子为分子的气体. 包括氦、氖、氩、氪、氙、氡6个元素,属周期系零族元素. 因为 氡气是放射性元素,一般不考虑得,所以有的地方不算
稀有气体有哪几种? …… 氦、氖、氩、氪、氙、氡
稀有气体有哪些? - ……稀有气体元素指氦、氖、氩、氪、氙、氡以及不久前发现的Uuo7种元素,又因为它们在元素周期表上位于最右侧的零族,因此亦称零族元素.稀有气体单质都是由单个原子构成的分子组成的,所以其固态时都是分子晶体.