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Module 1: Historia y desarrollo de la teoría atómica

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John Joseph Thomson

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Chemistry - John Joseph Thomson

John Joseph Thomson

Thomson established that all atoms contain negatively charged particles
called The electron was shown to have a mass about one two-thousandth of
the mass of the smallest atom, an H-1 atom. Thomson also proposed, in a
model for the internal structure of an atom, that the rest of the neutral
atom, apart from the electrons, must have an overall positive charge. In
this model, an atom consisted of a 'uniform sphere of positive fluid in
which electrons moved'. It is commonly known as the

Thomson also suggested that electrons could arrange themselves inor His
proposal that the horizontal rows on thecorresponded to electrons being
added one by one to a particular shell was quite astute.

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