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Thomson atomic model | Description, Plum Pudding, Image | Britannica Thomson atomic model, earliest theoretical description of the inner structure of atoms, proposed about 1900 by William Thomson (Lord Kelvin) and strongly supported by Sir Joseph John Thomson, who had discovered (1897) the electron, a negatively charged part of every atom
2. 2: The Discovery of Atomic Structure - Chemistry LibreTexts In 1897, the British physicist J J Thomson (1856–1940) proved that atoms were not the most basic form of matter He demonstrated that cathode rays could be deflected, or bent, by magnetic or electric fields, which indicated that cathode rays consist of charged particles (Figure 2 2 2)
What Contributions Did J. J. Thomson Make To The Atom? The plum pudding model proved incorrect, but it offered the first attempt at incorporating a subatomic particle into an atomic theory In 1911, Ernest Rutherford — a former student of J J Thomson — proved this theory incorrect by experimenting and hypothesizing the nucleus
The History of the Atomic Model: Thomson and the Plum Pudding However, in 1897, the English physicist J J Thomson discovered that there was a particle smaller than an atom - the electron - through his work with cathode ray tubes To create a cathode ray tube, Thomson applied a voltage to one side of a sealed glass container with two electrodes
Thomsons Atomic Model | CK-12 Foundation In 1897, J J Thomson discovered the first subatomic particle, the electron, while researching cathode rays To explain the neutrality of atoms, Thomson proposed a model of the atom in which negative electrons are scattered throughout a sphere of positive charge
Thomsons Atomic Model - GeeksforGeeks In this model, Thomson suggested that atoms are made up of a positively charged sphere with negatively charged electrons embedded within it, which is also known as the "plum pudding model "
Discovery of the electron and nucleus (article) | Khan Academy J J Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons Thomson's plum pudding model of the atom had negatively-charged electrons embedded within a positively-charged "soup "
The Thomson Model of the Atom - ChemTeam In 1897, J J Thomson discovered the electron, the first subatomic particle He also was the first to attempt to incorporate the electron into a structure for the atom