Resultado de búsqueda
Hace 4 días · Jöns Jacob Berzelius discovered the silicon element in 1823. In 1787, Antoine Lavoisier suspected that silica might be an oxide of a fundamental chemical element, but the chemical affinity of silicon for oxygen is high enough that he had no means to reduce the oxide and isolate the element.
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.
31 de may. de 2024 · 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 4 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.
30 de may. de 2024 · Some of the history of catalysis publications do mention the lead chamber process of 1736 and then the coining of “catalysis” by Jöns Jacob Berzelius in 1835 (which pre- and postdate the work of Elizabeth Fulhame, respectively).
24 de may. de 2024 · Grupos de la tabla periódica. Te explicamos qué son los grupos de la tabla periódica y las características de cada uno. Además, los períodos de la tabla periódica. Los elementos de un mismo grupo presentan propiedades químicas similares. ¿Qué son los grupos de la tabla periódica?
2 de jun. de 2024 · La tabla periódica es una herramienta fundamental en el mundo de la química que organiza todos los elementos conocidos de una manera que destaca sus propiedades y relaciones. Vamos a sumergirnos en este fascinante mapa de los elementos para entender su estructura y utilidad.
