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.
Mendeleev published the first periodic table in 1869. The periodic table was created by Dimitri Mendeleev in 1869. He  arranged all chemicals according to atomic mass.endeleev published the first periodic table in 1869. The periodic table was created by Dimitri Mendeleev in 1869. He  arranged all chemicals according to atomic mass.