Resultado de búsqueda
6 de may. de 2024 · Pocos años después, el químico sueco Jöns Jacob Berzelius hizo otro avance al explicar la unión entre un átomo y otro por medio de fuerzas eléctricas. Él logró mostrar que hay átomos muy positivos y otros muy negativos y que los unos tienden a unirse con los otros, siendo el más negativo de todos el oxígeno, que se une ...
Hace 3 días · A Swedish chemist and disciple of Dalton, Jöns Jacob Berzelius embarked on a systematic program to try to make accurate and precise quantitative measurements and to ensure the purity of chemicals. Along with Lavoisier, Boyle, and Dalton, Berzelius is known as the father of modern chemistry.
Hace 2 días · Selenium (from Ancient Greek σελήνη (selḗnē) 'moon') was discovered in 1817 by Jöns Jacob Berzelius, who noted the similarity of the new element to the previously discovered tellurium (named for the Earth). Selenium is found in metal sulfide ores, where it partially replaces the sulfur.
6 de may. de 2024 · thorium (Th), radioactive chemical element of the actinoid series of the periodic table, atomic number 90; it is a useful nuclear reactor fuel. Thorium was discovered (1828) by Swedish chemist Jöns Jacob Berzelius. It is silvery white but turns gray or black on exposure to air.
9 de may. de 2024 · This research, based upon Swedish chemist Jöns Jacob Berzelius’s electrochemical and dualistic model of inorganic composition, proved to be a landmark in classifying organic compounds according to their constituent radicals.
- William H. Brock
14 de may. de 2024 · Amorphous elemental silicon was first isolated and described as an element in 1824 by Jöns Jacob Berzelius, a Swedish chemist. Impure silicon had already been obtained in 1811. Crystalline elemental silicon was not prepared until 1854, when it was obtained as a product of electrolysis.
5 de may. de 2024 · In 1830 Jöns Jacob Berzelius introduced the term isomerism to describe the phenomenon. In 1860, Louis Pasteur hypothesized that the molecules of isomers might have the same set of atoms but in different arrangements.
