Today (8 Feb) marks the birthday of Dmitri Mendeleev, one of the best-known chemists. His name is synonymous with the periodic table; though he wasn’t the first to attempt to organise the elements into a table, his use of his own table to predict the properties of undiscovered elements gave him prominence. This graphic looks at the elements known at the time he constructed his table and the elements whose properties he predicted.
February 11 is the International Day of Women and Girls in Science. To mark the occasion, this graphic looks at the contributions of women to the periodic table. The table highlights element discoveries women have been involved in and the two elements named after women.

Element 118, the final element in our International Year of the Periodic Table series, is oganesson. Oganesson was discovered in 2002 and its properties defy our expectations based on trends in the periodic table.
Elements 116 and 117 in our International Year of the Periodic Table series are livermorium and tennessine. Tennessine, first created in 2010, is the most recently discovered element in the periodic table as of 2019.
Elements 114 and 115 in our International Year of the Periodic Table series are flerovium and moscovium. Both of these elements have only been produced in extremely small amounts, so very little is known about them.
Elements 112 and 113 in our International Year of the Periodic Table series are copernicium and nihonium – the latter of which was the first element to be discovered in an Asian country.




