Dmitri Ivanovich Mendeleev, Russian: Дми́трий Ива́нович Менделе́ев, also romanized Mendeleyev or Mendeleef (8 February [O.S. 27 January] 1834 – 2 February [O.S. 20 January] 1907) was a Russian chemist and inventor. He is credited as being the creator of the first version of the periodic table of elements. Using the table, he predicted the properties of elements yet to be discovered.
An Outline of the System of the Elements
- Lecture to the Russian Chemical Society as quoted in "Peering Into the Unseen—What Is Revealed?" in Awake! magazine (22 August 2000)
- I wish to establish some sort of system not guided by chance but by some sort of definite and exact principle.
- We should still expect to discover many unknown simple bodies; for example, those similar to aluminum and silicon, elements with atomic weights of 65 to 75.
- I have no need of proof. The laws of nature, unlike the laws of grammar, admit of no exception.
- I suppose when my unknown elements are found, more people will pay us attention.
Quotes about Mendeleev
- Even though Mendeleev always denied that electrons exist, they later turned out to be vital for ordering the elements in his table.
- Patricia Fara, in Science A Four Thousand Year History (2009)