分子类型
|
代表物质
|
分子形状
|
键的极性
|
分子极性
|
A
|
He、Ne
|
球形
|
|
|
A2
|
H2、O2
|
|
|
|
AB
|
HCl、NO
|
|
|
|
ABA
|
CO2、CS2
|
|
|
|
ABA
|
H2O、SO2
|
|
|
|
A4
|
P4
|
|
|
|
AB3
|
BF3、SO3
|
|
|
|
AB3
|
NH3
|
|
|
|
AB4
|
CH4、CCl4
|
|
|
|
AB3C
|
CH3Cl、CHCl3
|
|
|
|
AB2C2
|
CH2Cl2
|
|
|
|