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【正文】 ????? ????Permanent Dipole bonds Permanent Dipole bonds exist between adjacent polar molecules. ?105????????????????????????bo ndingHydrogen3. Mixed bonding ? IonicCovalent Mixed bonding ? MetallicCovalent Mixed Bonding ? MetallicIonic Mixed Bonding %)100)(1(c h a r a c t e ri o n i c% 2BA ))(4/1( XXe ????XA and XB are the electronegativities of the atoms A and B in the pound Summary Ionic bonding Primary atomic bonds Covalent bonding Metallic bonding Permanent dipole bonds Secondary atomic bonds Fluctuating dipole bonds Examples and Discussions Exercise Thank you ! 2
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