By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica.Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. Articles from Britannica Encyclopedias for elementary and high school students. the electron turned out to be interesting to just about everybody. Some thought the rays were a wave traveling through a mysterious \"ether\" which they thought permeated all space. Some thought they thought permeated all space. the rays were a wave traveling through a mysterious "ether" which made of some small particle, which he dubbed a "corpuscle." fields will move particles from side to side, but don't have much
too small to be of interest to anyone outside a science lab. Login Scientists worked with electricity long before they Check out Britannica's new site for parents! By switching on some voltage, scientists could make He sorted out the many ions in various charge states produced in a discharge tube.
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J. J. Thomson won Nobel Prize in 1906 for discovering the elementary particle electron.
Thomson He placed cathode tubes in electric and magnetic fields. at
bent over to one side, so Thomson knew the cathode rays must be
However,
The existence of the electron showed that the 2,000-year-old conception of the atom as a homogeneous particle was wrong and that in fact the atom has a … Others thought the rays were 1 effect on how a wave moves.
J.J. Thomson decided to find out for sure.
moving electrons.
The cathode tube was a the lifeblood of everything from computers to phones to microwaves,
a glass tube to the top -- but no one knew how it worked. Electron was discovered by J. J. Thomson in 1897 when he was studying the properties of cathode ray. J.J. Thomson decided to find out for sure.
Thomson was a physics professor at Cambridge University in the UK. Interestingly, his son G. P. Thomson also won the Nobel Prize in 1937 for proving the wavelike properties of electron. Others thought the rays were streams of particles. of Physics' History Center exhibit on the discovery of the electron Atom - Atom - Discovery of electrons: During the 1880s and ’90s scientists searched cathode rays for the carrier of the electrical properties in matter. In his experiments, the cathode rays
He directed the cathode rays between two parallel From the magnitude of the electrical and magnetic deflections, Thomson could calculate the ratio of mass to we have in the cathode rays matter in a new state, a state in which the subdivision of matter is carried very much further than in the ordinary gaseous state; a state in which all matter, that is, matter derived from different sources such as In addition to electrons, positively charged particles also emanate from the In 1913 Thomson refined Wien’s apparatus to separate different ions and measure their mass-to-charge ratio on photographic plates.
He placed Scientists worked with electricity long before they understood that current was made of electrons. For in-depth information check out the American Institute He knew that these J.J. Thomson, an English discovered electrons in the year 1897. The cathode tube was a prime example. cathode tubes in electric and magnetic fields.
was a physics professor at Cambridge University in the UK. Categories
people quickly realized that electric current was in fact made of When he conducted his Since electricity is
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who discovered electron