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atomic model was solid, and stated all atoms differ in size, shape, mass, position and arrangement, with a void exists between them.
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The atom for them looked like a solid sphere, model or bowling ball model.
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atoms are "uncuttable"
atoms are small, hard particles
atoms constantly move -
all substances are made of atoms
atoms of different elements are different
atoms of the same element are exactly alike
elements combine in specific proportions
conducted experiments in combining elements -
He conducted the cathode-ray tube experiment
His theory of the atomic structure lead to the "plum-pudding" model
There are small, negatively charged particles inside an atom -
atoms contain mostly empty space
Electrons move in empty space in the atom
he conducted the gold foil experiment
most of an atom's mass is in the nucleus
there is a small, dense, positively charged nucleus -
atom is mostly empty space, with electrons orbiting a fixed, positively charged nucleus in set, predictable paths.
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Electrons jump between levels from path to path
Electrons travel in definite paths -
the atom is a sphere of positive charge, and negatively charged electrons are embedded in it to balance the total positive charge.
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model is patterned on the solar system and is known as the planetary model.
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Electrons should move around the nucleus but only in prescribed orbits. When jumping from one orbit to another with lower energy, a light quantum is emitted.
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Electrons are found in electron clouds, not paths
Electron path cannot be predicted
