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.
Dmitri Mendeleev came up with his first version of the periodic table in 1864, since then more than 700 versions of the table have been proposed. No chemistry textbook, classroom, lecture theatre or research laboratory is complete without a copy of the periodic table of the elements.he long form of the periodic table with the modern format has been attributed to H G Deming, who devised it for his textbook in 1923. Its popularity was ensured when it was adopted by a drug company as part of their promotional material.