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一、认识元素周期表1869年,一位俄国的化学家门捷列夫制定了世界上的第一张元素周期表。经过仔细的研究,根据元素的结构和性质,门捷列夫发明了元素周期表并且说明了元素及其化合物的规律。现如今人们所使用的元周期表几乎都是门捷列夫所制定的这种周期表,随着化学的进步与发展,元素周期表也越发完善。元素周期表就是用表格来表示元素周期律的一种具体形式,它反映了原子的结构以及元素之间的联系和它们的规律。元素周期表简称周期表。周期表有多种不同的表达形式,维
First, understanding the periodic table In 1869, a Russian chemist Mendeleev set the world’s first periodic table. After careful study, according to the structure and nature of the elements, Mendeleev invented the periodic table of the elements and illustrates the law of the elements and their compounds. Nowadays, people use the periodic table almost all Mendeleev developed such a periodic table, with the chemical progress and development, the more perfect the periodic table. The periodic table of the elements is a concrete form of the periodic law of the elements, which reflects the structure of the atoms and the relations between the elements and their laws. Periodic table referred to as the periodic table. The periodic table has many different expressions, dimensions