$12.4 The particularity of Li and Be The diagonal relationship Aims of teaching: To be familiar with the general properties of the s-block elements.To master the formation and basic properties of hydride,oxide,peroxide and superoxide of alkali and alkaline earth;to be familiar with the rule of stepwise changes of basicity and solubility of hydroxides of alkali and alkaline earth.Solubility and stability of some important salts.To know the particularity of Li and Be,and the diagonal relationship. important and difficult points: Formation and basic properties of hydride,oxide,peroxide and superoxide of alkali and alkaline earth.The rule of stepwise changes of basicity and solubility of hydroxides of alkali and alkaline earth.Solubility and stability of some important salts.the particularity of Li:very large hydration enthalpy of Li(g),very small (LLi),the combustion product of Li in air is LiaN and LiO,LiOH is middle strong base,LiCO3.FLi,Li3PO4 are sparingly soluble.the diagonal relationship.The similarity of Li and Mg. Chapter 13 the P block element(I)(5.0 hrs) $13.1 Outline on the p-block elements 13.2 The elements of boron family 13.3 The elements of carbon family Aims of teaching: To know the general properties of boron group,to be familiar with electron-deficient atoms and electron-deficient compounds.To be familiar with structure and properties of borane;to master structures and properties of B2O3 and boric;to know structures and properties of boron halides.To be familiar with amphiphilicity of Al,Al2O,Al(OH),to be familiar with salts of Al,aluminate and compounds of Al.To know the general properties of carbon group and structures of elementary carbon;to be familiar with important properties of CO.H.CO and carbonates,to acquire the ability to explain thermal stability of carbonates using ion polarization theory.To know elemental silicon,hydride of Si,Si,silicic acid,silicate,silicon halides. important and difficult points: §12.4 The particularity of Li and Be The diagonal relationship Aims of teaching: To be familiar with the general properties of the s-block elements. To master the formation and basic properties of hydride, oxide, peroxide and superoxide of alkali and alkaline earth; to be familiar with the rule of stepwise changes of basicity and solubility of hydroxides of alkali and alkaline earth. Solubility and stability of some important salts. To know the particularity of Li and Be, and the diagonal relationship. important and difficult points: Formation and basic properties of hydride, oxide, peroxide and superoxide of alkali and alkaline earth. The rule of stepwise changes of basicity and solubility of hydroxides of alkali and alkaline earth. Solubility and stability of some important salts. the particularity of Li: very large hydration enthalpy of Li+ (g), very small EQ(Li+ /Li), the combustion product of Li in air is Li3N and Li2O, LiOH is middle strong base, Li2CO3 , FLi, Li3PO4 are sparingly soluble. the diagonal relationship. The similarity of Li and Mg. Chapter 13 the P block element (I) （5.0 hrs） §13.1 Outline on the p-block elements § 13.2 The elements of boron family § 13.3 The elements of carbon family Aims of teaching: To know the general properties of boron group, to be familiar with electron-deficient atoms and electron-deficient compounds. To be familiar with structure and properties of borane; to master structures and properties of B2O3 and boric; to know structures and properties of boron halides. To be familiar with amphiphilicity of Al, Al2O3 , Al(OH)3 , to be familiar with salts of Al, aluminate and compounds of Al. To know the general properties of carbon group and structures of elementary carbon; to be familiar with important properties of CO2 , H2CO3 and carbonates, to acquire the ability to explain thermal stability of carbonates using ion polarization theory. To know elemental silicon, hydride of Si, SiO2 , silicic acid, silicate, silicon halides. important and difficult points: