Below is the 2019 version of the poster. Check below the periodic table for a list of 79 ChemClubs that participated in the creation of this poster.

This year we celebrate the 150 th anniversary of Mendeleev’s achievement in formulating the structure of the periodic table that ... Mendeleev’s table listed elements in rows or columns in order of ...

The Periodic Table is an amazing chemistry tool that is organized with elements in order of increasing atomic number. The properties of the element change as you move across the row, but are similar ...

They all have a link to the periodic ... on this list. Its first known use was quite glamorous, as it was used by the Ancient Egyptians in their eyeliner and mascara, in order to make it black.

Time for a re-cap. SUNAYANA: The periodic table developed when the early chemists attempted to list the known elements into some kind of order. TULELA: The early periodic table was arranged by ...