Introduction to the Periodic Table

In 1869, Russian scientist Dmitri Mendeleev created the Periodic Table, ordering the naturally occurring elements by their structure and properties. His Periodic Table changed the course of Chemistry forever, and even predicted the future. Chemistry - Periodic Table - Learning Points. Dmitri Mendeleev invented the periodic table in 1869. The periods of elements increase in relative atomic mass. The groups of elements behave in similar ways. Mendeleev left gaps in his periodic table for undiscovered elements. A Twig Curriculum Film. Delivering key learning points. Get straight to the facts in just three minutes – directly linked to core learning, Twig's curriculum films will fit neatly into your lesson plans.