Tagged with Periodic Table of Elements

Happy 150th, Periodic Table!

Happy 150th, Periodic Table!

The Periodic Table is having a birthday! In March, it will be 150 years since the Russian scientist, Dmitri Mendeleev, took all of the 63 known elements and arranged them into a table. Today the Periodic Table contains over 100 elements and is found in chemistry classes and labs around the world. One of my … Continue reading