Since the discovery of chemical elements , there has been an urgent need to arrange and classify them to understand them better. By electronic arrangement, the chemical properties of these elements are determined. Here comes the role of the periodic table of elements, which classifies and organizes all chemical elements according to their properties and composition. Let's get to know this table and learn more about the elements.
History of the periodic table of elements
The beginnings of the periodic table of elements date back to the 19th century, when the Russian scientist Dmitri Mendeleev arranged the chemical elements. According to their atomic weight, he discovered that he could separate the elements into groups that were similar in their chemical behavior.
Several decades later, German scientist Johannes Rayleigh conducted experiments to update Mendeleev's table, and it was developed by scientists Henry Gowal and John Newman in 1869 into the periodic table of elements we use today.
The periodic table is considered One of the most important tools of modern chemistry, it is used to determine the properties of chemical elements and analyze their reactions.
The periodic table helped in the discovery of many new elements in different periods, and it also helped in the development of new types of metals, and it is still used today in all chemical and physical sciences.
What is the periodic table of elements?
The periodic table of elements is a tabular display of the known chemical elements, arranged based on the chemical and physical properties of each element.
The presentation is in the form of a table that resembles a ladder, where the elements are placed in rows and columns. The rows are usually named after the substances that are arranged in the row, while the columns are named after the groups in which the elements are contained. The elements are arranged so that elements with similar properties are found in the same row or column. These arrangements allow those studying chemistry to easily understand and compare the chemical properties of the elements .
The periodic table of elements is one of the basic things that students learn in the field of chemistry, as it represents the arrangement of chemical elements.
Chemical element groups
Groups of chemical elements are elements in which the chemical elements share the same chemical properties and have similar electronegativity.
Groups are arranged vertically in the periodic table, and are named with numbers and names.
Each group has unique properties that can be easily and quickly identified based on its number in the table. The concept associated with chemical groups is used to predict the properties of unknown elements, and is also used to display and design chemicals and minerals. By understanding the properties of chemical groups, scientists can find applications for them in many fields.
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Rows in the periodic table
The horizontal rows in the periodic table are called periods, and each period contains elements that have the same outer electron configuration.
Elements in the same group or period share some chemical and physical properties.
The periodic table is widely used in chemistry and other sciences, where it can be used to determine the properties of elements and perform many chemical experiments and reactions.
It can also identify elements that are similar in strength and how they relate to other elements in the periodic table, so the periodic table is a special and important tool in science and chemistry.
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The importance of the periodic table for science
The periodic table of elements is the foundation for understanding chemistry and physics, and is one of the most important tools in the world of science.
- It presents information related to the properties of chemical elements in an organized and simple manner, enabling scientists and students to better understand and analyze the properties and interactions of elements.
- The periodic table can also be used to predict the properties of elements that have not yet been studied, without the need for very expensive chemical processes.
- By studying the patterns and rules that link the elements of the periodic table, scientists can predict how new elements might behave and save the effort and resources involved in actually testing them.
- The periodic table has greatly influenced the development of chemistry and physics, as it facilitates understanding the chemical properties of elements and provides the best methods for preparing and using different elements in industry and daily life.
Therefore, studying the periodic table of elements is essential to understanding chemistry and contributing to scientific and technological progress in the world.
Applications of the periodic table in daily life
The Periodic Table of Elements app is not only useful for students studying chemistry and physics in college, but for everyone who needs to use it in their daily life.
By using the application, you can learn more about the chemical elements that we deal with daily, and the periodic table can be used in practical life for many purposes. Among the most important uses of the periodic table in daily life are:
- Use of carbon in the manufacture of electrical appliances and electronic devices.
- Use of oxygen in burning fuels and air, and in the manufacture of medicines and chemicals.
- Nitrogen is used in the production of medicines, plastics and fertilizers.
- Silver is used in the manufacture of photographic devices and optical sensors.
- Chlorine is used in water purification, food sterilization and chemical industries.
- Copper is used in the manufacture of electrical wires, dishes and household appliances.
- Calcium is used in the manufacture of bricks, cement and glass.
Therefore, using the periodic table in daily life is important for everyone who wants to learn about the chemical elements we deal with and their impact on our health and environment.
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How to read the periodic table
If you want to read the periodic table of elements, you may need some explanation.
To make reading the periodic table easier, here are some simple steps you can follow:
Atomic number
There is a number in each cell in the table.
This number is known as the atomic number, which is the number of protons in the nucleus of an atom of the element.
Chemical symbol
Each element in the table is represented by a letter or letters and is called a chemical symbol, for example, nitrogen is represented by the letter N.
Chronological order
The periodic table displays the elements in chronological order, which includes increasing atomic mass.
Special elements in the periodic table
The periodic table of elements contains many special elements that are distinguished by their unique and diverse properties. Among these special elements we can point out:
Helium:
It is the only element that cannot react with other elements, and is used in polymerization research and electrical devices.
Fluorine:
It is considered a strong and reactive element, and is used in the manufacture of adhesives, medicines, and pesticides.
Carbon:
It is famous for its chemical composition property of organic materials, and is used in the petroleum, forestry and medical industries.
Mercury:
It is characterized by its physical and chemical properties, and is used in the manufacture of mirrors, medical and electronic devices.
gold:
It is used in the cosmetic industry and as a stabilizer for banknotes and jewelry.
Diamonds:
It is distinguished by its physical and chemical properties, and is used in the jewelry industry.
- Oxygen:
It is an important element in life and breathing, and is used in many industries such as oxides and electrical charging.
Calcium:
It is used in the manufacture of cement, glass, iron and other industries.
It is used in dehydration processes, fertilizer manufacturing, and liquid nitrogen processes.
iodine:
It is used in the manufacture of clothing, medicines, detergents and colors.
These special elements are part of the great treasure held by the periodic table of elements, which reflects the indispensable importance of chemical elements to human life.
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