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Solved the problem of why the electrons did not immediately collapse into the nucleus

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His ideas were that the atomic theory remains valid in modern chemical thought. Matter is made of atoms. Atoms are indivisible and indestructible. Compounds are formed by a combination of two or more different kinds of atoms. His model's name is

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His ideas were that the atomic theory remains valid in modern chemical thought. Matter is made of atoms. Atoms are indivisible and indestructible. Compounds are formed by a combination of two or more different kinds of atoms. 

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His ideas were that the atomic theory remains valid in modern chemical thought. Matter is made of atoms. Atoms are indivisible and indestructible. Compounds are formed by a combination of two or more different kinds of atoms. 

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1) Discovered the nucleus and development of and atomic model. He introduced the Rutherford--Bohr model.

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1. Discovered the electron.
2. He modeled the structure of an atom.
3. He experimented the charge to mass ratio of an electron.

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In 1911, although he could not prove that it was positive or negative, he theorized that atoms have their charge concentrated in a very small nucleus, and thereby pioneered the Rutherford model of the atom, through his discovery

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1) Discovered the nucleus and development of and atomic model. He introduced the Rutherford--Bohr model

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2. Created the first atomic model, helping other scientists further look into the science of the atom and its general makeup.

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1. Discovered the neutron.
2. Was assigned the task of tracking down evidence of Rutherford's tightly bound "proton-electron" or neutron. In 1930 it was discovered that Beryllium, when bombarded by alpha particles, emitted a very large energetic stream of radiation.

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Discovered the electron and went on to propose e model for the structure of the atom. He also modeled the structure of the electron.

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1.

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1. All matter consist of invisible particles called atoms.

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Milikan measured the charge on an electro the atomizer from a perfume bottle was used to spray water or oil droplets into a sample chamber, some of these droplets fell through a pinhole between two plates of an electric field where they could be observed through a microscope. By carefully studying individual droplets he was able to show that the charge on a drop was always a multiple of a small value.
An experiment performed by him determined the size of the charge of an electron, he also determined there was a smallest unit of charge or that charge is quantified.