答案(Answer):B.covalent bonding共价键 A.metallic bonding 金属键 B.covalent bonding共价键 C.ionic bonding 离子键 D.van der Waals forces范德华力 化学键可分为：共价键、离子键及金属键三大类。共价键为两原子共享电子对之化学键，其结合原子皆为非金属原子。离子键为阳离子与阴离子间之库伦静...
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
A covalent bond in which electrons are not shared equally is called a. polar. b. normal. c. nonpolar. d. neutral. Types of Bonding Between Atoms: The types of bonding between atoms vary depending on the type and the number of atoms involved. ...
When a nonmetal bonds with a nonmetal: A. electrons are shared. B. a covalent bond is involved. C. a molecular compound forms. D. All of the above are true. E. None of the above are true. The attractions between anions and ...
- Analysis: Carbon would need to either gain 4 electrons or lose 4 electrons to achieve a stable configuration, which is not feasible. Instead, carbon shares electrons with fluorine, resulting in a covalent bond. 5. Option C: Nitrogen (N) and Fluorine (F): - Electronic Configuration: - ...
After identification of ions, look for the possibility of bond formation by equal sharing of electrons from the given elements. Depending upon the charge they carry, we can finally come over the formula and the name of those particular binary compounds from t...
The structure of the ligand ethylene diamine to be drawn. Concept Introduction : Ligands : The ligands possess one or more donor atoms (lone pair of electrons) which donate electrons to transition metals through coordination bond. To Identify: The structure of...
- Lithium (Li) has 1 valence electron and can form one bond with hydrogen (H), which has 1 valence electron. - In LiH, lithium shares its one electron with hydrogen, resulting in a stable configuration for both. - Total electrons involved = 2 (1 from Li and 1 from H). - Conclu...
It had to be soft enough to bond the delicate structures, while hardening quickly enough to support the subsequent layers. Robert Flatt, ETH Professor of Physical Chemistry of Building Materials, developed a novel mixture for this purpose. Just before the concrete leaves the pressurized nozzle, ...
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, so...