What is the Periodic Table?

The video explores the historical development of the periodic table, starting with early observations of element patterns. It covers Dobereiner's triads, Newlands' octaves, and the challenges they faced. Mendeleev's significant contribution in forming the first periodic table is highlighted, including his predictions of undiscovered elements. The video concludes with the evolution to the modern periodic table, addressing issues like noble gases and atomic weight discrepancies.

How did Dmitri Mendeleev improve upon the existing periodic table?

What challenges did Mendeleev face with his periodic table regarding the discovery of noble gases?