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Who developed the particle theory?
John Dalton
What evidence led Dalton to propose his atomic theory?
There was no concrete evidence that led Dalton to propose his atomic theory. He proposed this theory based on logical explanations about the behavior of elements, gases or materials.
Who was considered the father of atomic theory?
John Dalton
Which scientist laid the foundation for atomic theory?
John Dalton
Who provided the basic theory about the nature of matter?
John Dalton provided the basic theory about the nature of matter.
What was the name of the discovery that disproved Dalton's theory?
Thomson disproved Dalton's theory because he discovered electrons.
Which discovery did j.j Thomson make that improved upon Dalton atomic theory?
that atoms can be broken
Who made the contributations to the theory?
Leukippus, Democritus, Dalton, Bohr, Rutherford, Thomson and many others.
How did Thomson discovery change Dalton's atomic theory?
Thomson's discovery of the electron showed that there were things smaller than the atom that could be removed from the atom. Therefor the atom was not an "uncuttable" object as Dalton had proposed.
Who made contributions to the atomic theory?
Leukippus, Democritus, Dalton, Bohr, Rutherford, Thomson and many others.
Is Dalton's atomic theory the same as the particle theory?
No b/c Thomson discovered that atoms can be cut. He found this out while studying rays traveling between charged metal plates in a vacuum tube. He discovered that the rays were consisted of negatively charged particles. He had just discovered electrons. He discovered all of this on a trip from America. Since electrons are so small, he believed that they could only be from inside of the atom. Since Thomson's discovery of the electron, John Dalton's theory that atoms are indivisible had to be changed.
Why was Dalton's model of the atom changed after Thomson's experiment?
John Dalton's atomic theory indicated that atoms were indivisible spheres. When JJ Thomson did his work with cathode ray tubes, he discovered that atoms contain electrons, which meant that the atom is not indivisible, that there are smaller particles within.
Who came up with this quote all atoms of a given element are identical but they differ from those of any other element?
Dalton came up with that theory. It was proven wrong, though.
How did Thomson's discovery change Dalton's atomic theory?
Thomson discovered that atoms can be cut. He found this out while studying rays traveling between charged metal plates in a vacuum tube. He discovered that the rays were consisted of negatively charged particles. He had just discovered electrons. He discovered all of this on a trip from America. Since electrons are so small, he believed that they could only be from inside of the atom. Since Thomson's discovery of the electron, John Dalton's theory that atoms are indivisible had to be changed.
What are the differences between Dalton's model of the atom and Thompson's model of the atom?
Dalton never acknowledged the fact that the atomic structure consisted of protons nor electrons. Dalton's theory suggested:unlike Thomson who came up with the theory of the 'Plum Pudding Model', which consisted of a positive proton with electrons 'scattered' through it, like "...currants in a Christmas pudding..."hope this was somewhat helpful :)Matter is made up of indivisible atoms.All atoms of an element are identical.Atoms are neither created nor destroyed.Atoms of different elements have different weights and chemical properties.Atoms of different elements combine in simple whole numbers to form compounds.
Who proposed john Dalton's atomic theory?
John Dalton. He put forward the atomic theory in 1808.
How jj Thomson and ernest Rutherford used the cathode ray tube and gold fuil apparatus?
Dalton's second theory was disproved by j.j. Thompson and ernest rutherford because dalton did not do any experiment to came out with that's theory,that is the reason why they came out with cathode ray tube and gold fuil apparatus.
