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Dmitri Ivanovich Mendeleev (/ ˌ m ɛ n d əl ˈ eɪ ə f / MEN-dəl-AY-əf; [2] [b] [a] 8 February [O.S. 27 January] 1834 – 2 February [O.S. 20 January] 1907) was a Russian chemist known for formulating the periodic law and creating a version of the periodic table of elements.
This is an accepted version of this page This is the latest accepted revision, reviewed on 28 January 2025. Development of the table of chemical elements The American chemist Glenn T. Seaborg —after whom the element seaborgium is named—standing in front of a periodic table, May 19, 1950 Part of a series on the Periodic table Periodic table forms 18-column 32-column Alternative and extended ...
This is a list of women chemists. It should include those who have been important to the development or practice of chemistry . Their research or application has made significant contributions in the area of basic or applied chemistry.
Two other inventors, Robert Douglass and John Apjohn, also patented windscreen cleaning devices in the same year. Car heater Margaret A. Wilcox invented an improved car heater, which directed air from over the engine to warm the chilly toes of aristocratic 19th-century motorists, in 1893. She also invented a combined clothes and dish washer.
Gallium was discovered by French scientist Paul-Émile Lecoq de Boisbaudran, who named it in honor of France ("Gallia" in Latin); allegations were later made that he had also named it for himself, as "gallus" is Latin for "le coq", but he denied that this had been his intention.
Tabitha Babbitt (1779–1853), American inventor and tool maker; Mary Brush (fl. 1815), American inventor; Martha Coston (1826–1904), American inventor; Ellen Eglin (1849–fl. 1890), American inventor; Caroline Eichler (1809–1843), German inventor, instrument maker and prostheses designer. Hanna Hammarström (1829–1909), Swedish inventor
This is a timeline of women in science, spanning from ancient history up to the 21st century. While the timeline primarily focuses on women involved with natural sciences such as astronomy, biology, chemistry and physics, it also includes women from the social sciences (e.g. sociology, psychology) and the formal sciences (e.g. mathematics ...
Perey named the element francium, after her home country, and it joined the other alkali metals in Group 1 of the periodic table of elements. [3] [7] Francium is the second rarest element (after astatine) — only about 550g exists in the entire Earth's crust at any given time — and it was the last element to be discovered in nature.