3.1双原子分子的结构 化学键:离子键,共价键和金属键 近代研究化学键的三大理论: ☆价键理论( alence bond Theory)

p.91 3.1 Naming alkenes 1. Name the parent hydrocarbon, find the longest carbon chain that contains the double bond.命名母体

一. Structure of Alkene: 1. SP2 Hybridization: 2. The Properties of t-bond:

Three Ways to Describe Crystal Structures Three Structural sketches of P4O10 molecules: (a)Stick-ball model：showing that the P-O chemical bond is the tetrahedral coordination and sp3 covalent bonds

14.1 债券的特点 14.2 债券定价 14.3 债券收益率 14.4 债券的时间价格 14.5 违约风险与债券价格

4.1 离子键理论 4.2 共价键理论 4.3 金属键理论 4.4 分子间作用力 理解共价键的饱和性和方向性及σ键和π键的区别； 掌握杂化轨道理论的要点，并说明一些分子的构型；掌握分 子轨道理论的基本要点，同核双原子分子和异核双原子分子 的分子轨道式及能级图；掌握分子的极化，分子间力及氢键 等

1. Bond analysis 债券是最基本的固定收益证券。 债券的定价 债券的特性

N ow that we're familiar with the structure and preparation of alkenes, let's look at their chemical reactions. The characteristic reaction of alkenes is addition to the double bond according to the general equation:

6. 1 An atomic model is needed to understand how atoms bond Electrons in the outermost occupied shell of any atom are responsible for the atom's chemical properties. The electrons that participate in chemical bonding are called valence electrons(价电子), the shell they

SOLUTIONS TO TEXT PROBLEMS 19.1 (b) The four carbon atoms of crotonic acid form continuous chain. Because there is a double bond between C-2 and C-3, crotonic acid is one of the stereoisomers of 2-butenoic acid. The chem