標題:
Why the dipole moment of HF is greater than that of HI??
發問:
just as the question mentioned above 更新: The model answer states as follows : F is more eletronegative than I . the effect of increase in eletronegativity outweighs the effect of increase in internuclear distance (size) . What means by that ? Thank You !
最佳解答:
because F is more electronegative than I greater attraction between H and F than H and I 2007-07-28 13:35:20 補充： normally, increase the internuclear distance have greater moment element down the group should have greater dipole moment 2007-07-28 13:35:40 補充： however, in the case of HFF is the most electronegative element so the effect of increase in eletronegativity outweighs the effect of increase in internuclear distance ("outweighs" is the key word) 2007-07-28 13:36:25 補充： i.e. the effect of increase in eletronegativity is the main reason for this question & cancel out the effect of increase in internuclear distance
其他解答:
此文章來自奇摩知識+如有不便請留言告知
留言列表
