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一、问题的提出根据金属活动性顺序表锌的金属活动性比铜强。根据实验事实:金属锌单质能从铜盐(如硫酸铜溶液)中置换出铜单质;并且锌能与酸反应置换出氢气,但铜不能。故而说明锌的金属活动性比铜强。但是根据元素周期律,在元素周期表中:从左到右,元素的金属性逐渐减弱,从上到下,元素的金属性逐渐增强。我们发现铜在锌的左侧,故而根据元素周期律,铜的金属性要强于锌。二、问题的研究元素的金属性是元素的性质,指的是元素的
First, the question raised According to the sequence of metal activity table zinc metal activity than copper. According to the experimental fact: the elemental zinc metal can replace the elemental copper from the copper salt (such as copper sulfate solution); and the zinc can react with the acid to replace the hydrogen gas, but the copper can not. Therefore, zinc metal activity than copper. However, according to the periodic law of the elements, in the periodic table of the elements: From left to right, the metallicity of the element gradually decreases, and from the top to the bottom, the metallicity of the element gradually increases. We found that copper is on the left side of zinc, so that according to the periodic law of the elements, the metallicity of copper is stronger than that of zinc. Second, the problem of research The elemental nature of the metal is the nature of the element, referring to the element