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Hace 3 días · J.J. Thomson, born Joseph John Thomson in 1856, was a British physicist renowned for his discovery of the electron in 1897. Working at the Cavendish Laboratory at the University of Cambridge, Thomson demonstrated through his experiments with cathode rays that atoms are not indivisible as previously thought, but contain smaller particles.
Hace 4 días · El descubrimiento de los electrones se atribuye al científico inglés Joseph John Thomson en 1897. Thomson experimentaba con la conducción de la electricidad a través de los gases y descubrió que los rayos emitidos por un cátodo estaban compuestos por partículas de carga negativa a las que denominó “corpúsculos” .
Hace 3 días · Not until the late 19th century did any understanding of individual particles come about, with J.J. Thomson's plum pudding model of the atom as a neutral composite consisting of individual negative particles or electrons embedded in a blob of positive charge.
Hace 4 días · James Thomson, el colportor que recorrió Sudamérica. El periplo de James Thomson por Sudamérica (I) James Thomson llega al puerto de Veracruz, México, el 29 de abril de 1827. Para...
Hace 15 horas · J.J. Thomson’s model described the atom as a positively charged sphere with embedded negatively charged electrons, akin to raisins within a plum pudding. This “plum pudding” model suggested that atoms were not indivisible but comprised of smaller, subatomic particles.
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Hace 5 días · The Thomson Experiment . In 1897 J. J. Thomson attempted to measure both the mass and charge of the negative particles making up the cathode ray. He was unable to measure either the charge or mass by itself, but he was able to measure them both as a ratio.
