迄今为止,已制得的希有气体化合物都是重希有气体(Kr、Xe和Rn)的化合物,对于轻希有气体(He、Ne和Ar)只制得其包合物,真正的价键化合物尚无所知。轻希有气体究竟能否形成价键化合物,这是值得探讨的问题。有人提出这样一条规律:普通元素与希有气体反应生成通常二元化合物的必要条件是普通元素的电负性要高于希有气体的电负性。根据他的计算,Ne的 So far, the compounds that have been prepared are all those of noble gases (Kr, Xe, and Rn). Only the compounds of He, Ne and Ar are obtained, the true valence compounds I do not know. It is worth discussing whether gas can form valence bond compounds. Some people put forward the following rule: the common element and the Greek gas reaction to generate the usual binary compounds, the necessary conditions for the common elements of the electronegativity is higher than that of the Greek gas. According to his calculations, Ne’s