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Thompson describe atoms as negatively-charged electrons embedded within a positively-charged "soup."

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Thompson describe atoms as negatively-charged electrons embedded within a positively-charged "soup."

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Thomson placed two oppositely-charged electric plates around the cathode ray. The cathode ray was deflected away from the negatively-charged electric plate and towards the positively-charged plate. This indicated that the cathode ray was composed of negatively-charged particles.

He concluded that the atom can be divided into smaller particles.

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Dalton believed that atoms were solid, mass filled, hard, impenetrable, movable particles

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Dalton believed that atoms were solid, mass filled, hard, impenetrable, movable particles

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Dalton's experiment of combining oxygen with volumes of nitric oxide in a covered container over water.

Dalton proposed that every single atom of an element, such as gold, is the same as every other atom of that element.

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Rutherford described it as having a tiny, dense, and positively charged core called the nucleus.

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Rutherford described it as having a tiny, dense, and positively charged core called the nucleus.

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Rutherford's experiment consisted of A beam of alpha particles was aimed at a piece of gold foil. Most alpha particles passed through the foil, but a few were scattered backward. This showed that most of the atom is empty space surrounding a tiny nucleus.

Rutherford's conclusion is that the atom is mostly empty space, with nearly all of its mass concentrated in a tiny central nucleus

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Bohr's description was that electrons revolve around the positively charged nucleus in a definite circular path called orbits or shells.

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Bohr's description was that electrons revolve around the positively charged nucleus in a definite circular path called orbits or shells.

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Bohr's conclusion is that electron will have more energy if it is located away from the nucleus whereas electrons will have less energy if it located near the nucleus.

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Heisenberg's description was the same as Rutherford's

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Heisenberg's description was the same as Rutherford's

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Heisenberg's experiment included trying to measure the position of an electron with a gamma ray microscope.

Heisenberg's conclusion is that the linear momentum and the position of an electron or other subatomic particle, it is not possible to simultaneously predict the value of both variables.