During his career, Robertson was a one-time NBA champion, one-time NBA MVP, and a twelve-time all-star. Robertson was inducted into the Naismith Memorial Basketball Hall of Fame in 1980 and is considered one of the greatest players to ever play the game.
The Russian chemist Dmitri Mendeleev was the first scientist to make a periodic table similar to the one used today. [citation needed] Mendeleev arranged the elements by atomic mass, corresponding to relative molar mass.
A: The periodic table was invented by chemist Dmitri Mendeleev to organize and compare elements and understand their relations with each other. Mendeleev created the periodic table between 1868 and 1870 while writing his book titled The Principles of Chemistry..