锡和铅在元素周期表中同一主族,按从上到下递变的规律应是铅比锡金属性强,而在金属活动顺序表中锡却排在铅的前面,究竟何者金属性更强?本文试从以下两个方面进行分析和阐述。 首先从锡和铅的主要特性常数及性质来分析;两者的第一电离势和E°相差不多,铅略大;电负性铅略小。总起来看两者相差不多。 Tin and lead in the same main group of the periodic table of elements, according to the law from top to bottom, the rule of lead should be stronger than that of tin, while in the sequence of activities of metal, tin is in front of lead. Which is more metallic? This article tries to analyze and explain from the following two aspects. Firstly, the main characteristic constants and properties of tin and lead were analyzed; the first ionization potential of both was similar to that of E°, and the lead was slightly larger; the electronegativity lead was slightly smaller. In general, the two are similar.