Search results
Apr 2, 2014 · J.J. Thomson was a Nobel Prize-winning physicist whose research led to the discovery of electrons. Updated: May 26, 2021. Photo: Universal History Archive/Getty Images. (1856-1940) Who Was...
During 1895 and 1896, in a scientific atmosphere enriched by reports of the discovery of x rays and "Becquerel rays" or radioactivity, Thomson brought the study of cathode rays into his research on electricity and gases. He had studied cathode rays previously, trying to provide a theoretical framework to describe the rays.
Feb 25, 2020 · Although a mathematician and an experimental physicist by training, J. J. Thomson contributed extensively to the field of chemistry by discovering the existence of electrons, developing the mass spectrometer and determining the presence of isotopes. Thomson’s Early Interest in Science. J. J. Thomson was born in Manchester, England, in 1856.
People also ask
How did Joseph John Thomson contribute to science?
Did JJ Thomson discover the electron?
What was Thomson's role in the discovery of the electron?
How did Thomson & Aston discover ionization?
Jun 27, 2022 · In 1808, chemist John Dalton developed an argument that led to a realisation: that perhaps all matter, the things or objects that make up the universe are made of tiny, little bits. These are fundamental and indivisible bits and named after the ancient Greek words ‘a’ meaning not and ‘tomos’ meaning cut therefore ‘atomos’ or uncuttable.
In 1804, Dalton explained his atomic theory to his friend and fellow chemist Thomas Thomson, who published an explanation of Dalton's theory in his book A System of Chemistry in 1807. According to Thomson, Dalton's idea first occurred to him when experimenting with "olefiant gas" ( ethylene ) and "carburetted hydrogen gas" ( methane ).
Thomson's claim to be the discoverer of the electron rests on two key observations. First, he found that the value of e/m was of the order of 1000 times larger than its value for the lightest particle then known, which was the hydrogen ion in electrolysis.
Apr 30, 2020 · Every April 30 we celebrate the anniversary of the discovery of the first subatomic particle: the electron, an achievement that the encyclopaedias attribute to the English physicist Joseph John Thomson in 1897. He was a well-known scientist in his day, but his announcement was hard to believe as it was thought at the time that there was nothing ...
