feb 9, 1869 - Second Periodic Table created
Description:
He did the second periodic table, more based on chemical properties of elements than just atomic mass, like Newlands did. He also created a law that would explain where elements would be placed, and predicted some undiscovered elements, like aluminium.He used the law of underlying pattern (periodicity)
Added to timeline:
Date:
feb 9, 1869
Now
~ 156 years ago