What is the basis for the arrangement of the periodic table? Detailed interpretation of the periodic table of chemical elements

The arrangement of the periodic table of chemical elements shows the periodicity of the chemical properties of different elements, so from the literal meaning we should be able to guess why it is called the periodic table of chemical elements. There must be a reason for it. Next, let us learn in detail about the basis for the arrangement of the periodic table of chemical elements and the detailed interpretation of the periodic table of chemical elements. I hope it will be helpful to you.

Contents of this article

1. What is the basis for the arrangement of the periodic table?

2. Detailed interpretation of the periodic table of chemical elements

3. Is the seventh period of the periodic table filled?

4. How to memorize the periodic table in high school

What is the basis for the arrangement of the periodic table?

The periodic table is arranged based on the number of electron layers outside the nucleus. For example, the elements in the first period have only one layer of electrons outside the nucleus, the elements in the second period have two layers, and so on.

The periodic table of chemical elements is a list of chemical elements sorted from smallest to largest according to their atomic number. The list is generally rectangular, with spaces left in some periods so that elements with similar properties are grouped in the same group, such as halogens, alkali metals, rare gases (also known as inert gases or noble gases), etc. This forms element divisions in the periodic table and is divided into seven main groups, seven subgroups, and zero and eight groups.

Detailed interpretation of the periodic table of chemical elements

The arrangement of the periodic table of chemical elements shows the periodicity of the chemical properties of different elements. In the periodic table, elements are arranged in ascending order of atomic number and are divided into several columns and columns. Elements in the same row are called the same period.

According to quantum mechanics, the period corresponds to the electron configuration of the atoms of an element, showing the number of electron layers that the atom has. Going down the periodic table of chemical elements, the length of the period gradually increases, and the elements are divided into s-block elements, p-block elements, d-block elements, and f-block elements according to their electron configuration. Elements in the same column are called the same group, and the elements in the same group have similar chemical properties.

Is the seventh period of the periodic table filled?

The seventh period of the periodic table is full. The periodic table is a list of chemical elements arranged from smallest to largest according to their nuclear charge. The list is generally rectangular, with spaces left in some periods so that elements with similar properties are grouped in the same group, such as alkali metals, alkaline earth metals, halogens, rare gases, etc.

The periodic table is divided into seven main groups, seven sub-groups, group VIII, and group 0. Because the periodic table can accurately predict the properties of various elements and the relationships between them, it is widely used in chemistry and other scientific fields as a very useful framework for analyzing chemical behavior. The periodic table was summarized and published by Russian chemist Mendeleev in 1869.