一、利用结构掌握物质的化学性质. 物质的化学性质主要取决于原子结构和分子结构.对金属单质而言,它们的化学性质主要由金属的原子结构决定的,如Li、Na、K金属活泼性依次增强,Na、Mg、Al金属活泼性依次减弱 First, use the structure to grasp the chemical nature of the material. The chemical nature of the material mainly depends on the atomic structure and the molecular structure. For the metal simple substances, their chemical properties are mainly determined by the metal’s atomic structure, such as Li, Na, K metal lively Sequentially enhanced, and the metal, Na, Mg, and Al are less active.