A periodic table is an important tool in the life of any school student or scientist. It is a massive achievement of years of work that has categorized and organized a large system of information into a very handy tool. It is also universally recognized around the world and easily translatable between countries.
Its main importance lies in history where it was used to promote the investigation of the gaps left by Mendeleev which lead scientists to discover new and exciting elements which have vast uses in our everyday life. Without it, a lot of metals and useful elements we take for granted would never have been discovered.
For example, massive research projects are undertaken every day by large pharmaceutical companies, governments and universities. These projects can take place over several continents, in several languages and in different laboratories but they are all held together by the common language of the periodic table and the science that underpins its construction.
The periodic table is the collection of elements arranged by atomic number
Dmitri Mendeleev was a Russian scientist who in 1869 proposed the first structure of the periodic table
Elements are atoms with the same number of protons in the nucleus