Rutherford observations Conception Atom model Thomson, Rutherford , bohratom model
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Thomson model of atom
J J Thomson created a model in 1898. it is in spherical shape its radius is approximately 10 to the power -10 m. in which positive charge is uniformly distributed. An important feature of this model is mass of the atom is assumed to be uniformly distributed over the atom.
J J Thomson created a model in 1898. it is in spherical shape its radius is approximately 10 to the power -10 m. in which positive charge is uniformly distributed. An important feature of this model is mass of the atom is assumed to be uniformly distributed over the atom.
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Rutherford's model of an atom :
In this experiment, fast moving alpha (α)-particles were made to fall on a thin gold foil. ... This gold foil was about 1000 atoms thick. α-particles are doubly-charged helium ions. Since they have a mass of 4µ, the fast-moving α-particles have a considerable amount of energy.
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