ionic,covalent,polar covalent,metallic,hydrogen 这五种Bond 键的强弱

ionic,covalent,polar covalent,metallic,hydrogen 这五种Bond 键的强弱 covalent bond,ionic bond,metallic bond 请问什么是nonpolar covalent bond 和polar covalent bond covalent bond有哪些物理性质 Non-polar and polar covalent bonds ap 关于dative covalent bond 配价键的题 离子键,共价键,金属键的相同点(similarities between ionic,covalent,and meta Explain the differences between covalent bonding and ionic b covalent molecular substance 和 covalent network substance的中文 Is N2 a covalent bonded molecule with triple bond inside? what type of bond is formed in a covalent compoound? simple molecular substance和giant covalent substance的区别?