[DOC] [TLE] J. J. Thomson - Wikipedia [PAR] Sir Joseph John Thomson OM PRS was an English physicist. He was elected as 
a fellow of the ... In 1897, Thomson showed that cathode rays were composed of 
previously ... of the electron; and with the discovery of the first subatomic particle. 
... Rutherford, who later succeeded him as Cavendish Professor of Physics. [DOC] [TLE] J. J. Thomson - Biography, Facts and Pictures - Famous Scientists [PAR] J. J. Thomson took science to new heights with his 1897 discovery of the electron 
- the first ... Even as a young boy Joey, who would later be known as J. J., was 
deeply interested in science. ... of Manchester, where he studied mathematics, 
physics and engineering. ... Discovery of the Electron  The first subatomic 
particle. [DOC] [TLE] Discovery of the Electron: J. J. Thomson - Le Moyne [PAR] In 1897 he reported that "cathode rays" were actually negatively charged 
particles in ... Thomson was not the only physicist to measure the charge-to-mass 
ratio of ... out this measurement and (later) the measurement of the particles's 
charge, ... the carriers of negative electricity are bodies, which I have called 
corpuscles[1],... [DOC] [TLE] Joseph John J. J. Thomson | Chemical Heritage Foundation [PAR] Jul 22, 2015 ... The British physicist Joseph John (J. J.) Thomson (18561940) ... Later he 
estimated the value of the charge itself. ... In 1897 Thomson discovered the 
electron and then went on to ... focused on determining the nature of positively 
charged particles. ... First Friday  Science on Tap  Brown Bag Lectures... [DOC] [TLE] Sir J.J. Thomson | British physicist | Britannica.com [PAR] Feb 6, 2015 ... Sir J.J. Thomson, in full Sir Joseph John Thomson (born December 18, ... of 
atomic structure by his discovery of the electron (1897). ... They are now called 
electrons, although he originally called them corpuscles. ... on the behaviour of 
subatomic particles in natural phenomena when, .... Try again later. [DOC] [TLE] April 30, 1897: JJ Thomson Announces the Electron  Sort Of - Wired [PAR] Apr 30, 2012 ... 1897: Physicist J.J. Thomson tells a startled scientific audience that he's 
discovered something smaller than an atom, a particle with a minuscule ... that 
the rays were in fact streams of small subatomic particles, the first known. ... 
Thomson was vague in 1897 but later theorized that the negative electrons... [DOC] [TLE] Joseph John Thomson - Chemistry Encyclopedia - elements, gas ... [PAR] Joseph John Thomson, always known as "J. J.," was born in Manchester, 
England, on December 18, 1856. His fame derives primarily from his discovery of 
the electron in 1897. ... Thomson made Cambridge a world center for atomic 
physics. ... The electron was the first subatomic particle to be discovered, and he 
made the... [DOC] [TLE] Atomic Theory - Infoplease [PAR] The idea that all matter is made up of tiny, indivisible particles, or atoms, ... While 
the idea of the atom was supported by some later Greek philosophers, it was ... of 
atoms did not begin until 1897, with J. J. Thomson's discovery of the electron. ... a 
physicist at Cambridge University, was the first to suggest that these particles... [DOC] [TLE] J. J. Thomson - New World Encyclopedia [PAR] G.P. Thomson later became a noted physicist in his own right, winning the Nobel 
... In 1897, Thomson published the results of a series of experiments meant to 
confirm ... ray tubes leading him to the discovery of electrons and subatomic 
particles. ... In his first experiment, he investigated whether or not the negative 
charge... [DOC] [TLE] Inorganic Chemistry/The Discoveries of Electrons, Protons and ... [PAR] The Electron was discovered in 1896, by the British physicist J. J. Thomson, 
using a cathode ... The particle first named "corpuscles" by Thomson, it was later 
renamed ... Protons are subatomic particles that, with neutrons and electrons, are 
the ... Given the discoveries of electrons in 1897 by Thomson, Rutherford and 
other... [DOC] [TLE] High School Chemistry

Question: In 1897 physicist J.J. Thomson discovered the first subatomic particle, which was later called this
Answer: an electron