J J Thomson's atomic model: He developed the idea that atoms are made of negative electrons embedded in a gel of positive charge., This model assumed that mass of the atom is evenly spread over the entire atom., Rutherford's atom model: Explained the detailed model of the atom with gold foil experiment., Atom is mostly empty space but has a dense center is called the nucleus, Bohr's Atom Model: Electrons are moving only in specific orbits around atom's nucleus, Each possible orbit has a fixed energy,

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