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.
In the year 1869, Dmitri Mendeleev who was a professor invented the first periodic table of the elements to teach his students and published it in âPrinciples of Chemistryâ.He created a chart in a tabular form in which each of the 63 chemical elements was arranged as per the atomic mass order.n the year 1869, Dmitri Mendeleev who was a professor invented the first periodic table of the elements to teach his students and published it in âPrinciples of Chemistryâ.