After the discovery of the nucleus positive charge (nucleus) is completely separated from the negative charges (electrons).
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After the discovery of the nucleus positive charge (nucleus) is completely separated from the negative charges (electrons).
Ernest Rutherford. Added: I would think Neils Bohr here. Clarification: I think it was Rutherford. Bohr's work came after the "Rutherford Model". There are many places to read about this, eg Wikipedia " Rutherford Model". Certainly Bohr refined the Rutherford Model even before his quantum ideas for the hydrogen atom. That's why the "planetary model" is sometimes called the "Rutherford-Bohr Model."
These ideas are:· "All atoms of a given element are identical" : discovery of isotopes.· "A given compound always has the same relative numbers of types of atoms" : discovery of nonstoichiometric compounds.
in 1926In the early 1900's. See Wikipedia entries for JJ Thomson and Ernest Rutherford.
According to Thomson's atomic theory, the mass of an atom was special evenly throughout its volume. Errest Rutherford's experiment proved this wrong.
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the electron part
Rutherford and Soddy's theory stated that uranium successively disintegrated to lead. Rutherford discover the proton. He also discovered that the atom is mostly space.
Rutherford's theory is known as the Rutherford model or Rutherford atomic model. It describes the structure of an atom as a dense positively charged nucleus surrounded by orbiting electrons.
The Atomic Theory
After the discovery of the nucleus positive charge (nucleus) is completely separated from the negative charges (electrons).
The Discovery of Grounded Theory was created in 1967.
D. E. Rutherford has written: 'Introduction to lattice theory' -- subject(s): Lattice theory
Rutherford.
Rutherford and Soddy's theory stated that uranium successively disintegrated to lead. Rutherford discover the proton. He also discovered that the atom is mostly space.
According to Thomson's atomic theory, the mass of an atom was special evenly throughout its volume. Errest Rutherford's experiment proved this wrong.