150 years ago in 1869 D. I. Mendeleev and L. Meyer independently published their ideas on the
arrangement of the chemical elements in a periodic system. The United Nations and UNESCO
therefore declared 2019 the International Year of the Periodic Table. The question arises what
is so special about this simple table? Join the author on a short journey to the history of the
periodic table. Learn about its predecessors and look at how the periodic table of elements has
evolved over the years. Discover the periodic properties of the elements. Learn what makes the
periodic table so interesting and timeless and see what other ideas there are and have been
for representing it. The Author: Torsten Schmiermund has been working as a chemical technician
in the chemical industry for many years.
