The periodic table of the elements  is a system of classification and organization in table form, of the different chemical elements that exist. This table was created by the Russian chemist Dmitri Mendeleev in 1869, although other forms of classification already existed before his, his being precisely the one cataloged by the experts as the most precise, since in addition to organizing the elements according to their atomic number, the organize according to their common characteristics.The periodic table of the elements that we currently use is based on the periodic table designed by the Russian chemist Dmitri Mendeleev, because despite the fact that before other scientists such as Johann Wolfgang Döbereiner had discovered the connections between certain chemicals (the so-called brought), and later the geologist Alexander Emile Beyuger de Chancoustois together with the chemist John Alexander Reina Newlands published the law of octaves, which consisted in that certain characteristics of the elements were repeated every 8 elements. Although these two theories, the triads and the law of octaves, could not be applied to all elements, it served as the basis for the table that Mendeleev developed.The periodic table of the elements  divided across the width into 18 columns, and along the length into 7 periods , which are the squares in which the table is divided along the left side, these squares being decreased or increased according to the ascending levels of energy of atoms.

In each square of the table is where each element name is represented with the symbol of its chemical name, many derivatives in Latin, for example, Ag for silver (Argentum), Au for gold (Aurum) etc. The name and symbol of the elements is determined by the International Association of Pure and Applied Chemistry (IUPAC). At the top or top left is their atomic number, which is the number of protons that a single atom of the element contains in the nucleus. At the bottom of the symbol is the atomic weight, which is an approximation of the total number of particles in the nucleus.

The periodic table of the elements is a great help to quickly and orderly find the elements, their names, their characteristics and their category. It is used in various fields, from education to various industries.

What is the periodic table for?

Basically to catalog each known item and predict the appearance of other missing items. It is also useful for teaching students the names, characteristics, and functions of each element, which is why periodic tables have been included in the vast majority of educational systems in the world, as they greatly facilitate learning about chemistry and physics.

The periodic table serves among other things to:

  • Learn and know the chemical elements of nature
  • Predicting the new elements
  • Catalog items according to their type
  • Predicting certain reactions
  • Calculate the atomic weight of a combination
  • Calculate some physical reactions
  • Classify an item according to its type
  • Catalog new items
  • Know if an element is pure or synthetic
  • Used in physics
  • Medicine is used
  • Used in chemistry
  • It is used in education
  • Used in research
  • Join in various industries
  • Used in geology
  • Used in aerospace science
  • Used in the military industry
  • Its study helps improve memory
  • Its study helps improve concentration

The periodic table is used to learn the elements

The study of the periodic table begins in schools, depending on the educational regime it can be presented in primary or secondary education. Its use has spread to practically the whole world, as it has proven to be a very practical and useful way to learn the names and some characteristics of the elements.

There are different types of periodic tables, as they are modified as a new element is found, in addition some formats change a little as required by educators or the curriculum of the educational institution. Currently there are several models of the periodic table, some illustrated with drawings to facilitate learning for children, in addition, learning it helps to train children’s memory and their concentration, since it is required to know the names of the elements, their you characterize and their atomic weights. All the periodic tables are updated as new elements are discovered, but they follow the same principle created by Mendeleev.

The periodic table is used to catalog the chemical elements:

The primary function of the periodic table is to help classify in a certain order the different elements, both pure and synthetic compounds that have been found throughout history.

The periodic table has been modified several times since its creation, as different chemists and physicists have reclassified the elements, it is also modified every time new elements are discovered, although for this there are empty spaces in the table where they predict where the element will remain. new item discovered.

The periodic table is used in physics, chemistry and geology:

The periodic table is essential for research and studies in physics, chemistry and geology, since it is necessary to know about elements, their nature, their atomic characteristics and their composition. And the periodic table is an easy way to access the information of an element, both to classify it and to know the different reactions that the element can have when it belongs to a certain group. In geology, when some rare mineral is discovered, its chemical characteristics are analyzed and it is cataloged in its corresponding place in the table.

In medicine and industry:

Knowledge of the periodic table and the nature of the different elements is necessary for the elaboration of many chemical products. In medicine many elements are used, some in their pure state as part of medicines and others combined or altered as part of utensils or devices. It is also necessary to know the reaction of each element in the body, both for its necessary natural functions, and for the harmful effects they cause in the body. For this, it is necessary to learn the periodic table and carefully study the different elements and their reactions.

In the various industries, such as the oil, pharmaceutical, food, chemical, and nuclear industries, the periodic table is used to know the characteristics of the elements that are used in each one. Thus, for example, it is used by nuclear engineering to know the peculiarities of the radioactive elements that are used and the effects of other elements on them.



Samantha Robson
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Dr. Samantha Robson ( CRN: 0510146-5) is a nutritionist and website content reviewer related to her area of ​​expertise. With a postgraduate degree in Nutrition from The University of Arizona, she is a specialist in Sports Nutrition from Oxford University and is also a member of the International Society of Sports Nutrition.

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