百度试题 结果1 题目5 Which circled pair of electrons represents a co-ordinate bond? B AB CD CQ C●●×O CO C=×X X O 相关知识点: 试题来源: 解析 B 反馈 收藏
What type of chemical bond connects atoms that equally share electrons such as the bonds between a hydrogen atom and a carbon atom in methane? In terms of hydrogen bonding, which is more stable, an A-T base pair or a G-C base pair? What is ...
aCompare the magnitude of intermolecular forces of H2O and O2: [translate] aThe hydrogen bond is a weak bond,but than van der Waals force is strong.H2O has two hydrogen atoms.The oxygen atom has two lone pairs of electrons, which is easy to other hydrogen atoms to form hydrogen bonds, ...
An atom of a chemical element participates in a covalent bond when it shares one or more of its available valence electrons. The concept of electronegativity refers to this type of chemical bond. As the participating atom becomes more electronegative, the bonding (share...
What type of ion forms when an atom loses electrons? Explanation: An atom loses electrons to forma cation, that is a positively charged ion (and one that is attracted towards the negatively charged terminal, the cathode ). Why do atoms form a covalent bond?
As the positive charge on the central metal atom increase, the more readily the metal can donate its electrons to the antibonding p-orbital of carbonyl ligand. This bonding increases the strength of the metal –carbonyl bond and thus weakens the carbon-oxygen bond b...
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