Nothing. He contributed to the evolving body of speculation about the atom, by translating Epicurus who had developed his ideas from Leucippus and Democritus; but nothin to its history
Benjamin Franklin's contribution to the atomic theory was his proposal that electricity was a fundamental force that could be understood through atomic models. He conducted experiments with electricity and proposed the idea of positive and negative charges, which later contributed to the development of the atomic theory.
Neil bohr has done research in quantum mechanics.
He determined the number of positive charges in the nucleus of an atom. He was the first one to bring the concept of atomic number.
Michael Faraday's main contribution to atomic theory was his work on electrolysis, which demonstrated that chemical compounds are composed of discrete particles and that these particles carry an electric charge. This provided evidence for the existence of atoms and laid the foundation for the development of the modern atomic theory.
I think it was that he theorized that when a new substance is made, the elemnts didn't change the atoms just rearranged. I'm not certain though. Galileo is more known for his research on planets.
Antoine Lavoisier was a French nobleman and chemist. His contribution to the development of the modern atomic theory was his idea of the possibility of an Atomic Mass.
Benjamin Franklin's contribution to the atomic theory was his proposal that electricity was a fundamental force that could be understood through atomic models. He conducted experiments with electricity and proposed the idea of positive and negative charges, which later contributed to the development of the atomic theory.
The contribution of anyone prior to about 1600 to the development of atomic theory might as well be "nothing whatsoever." Democritus and/or Leucippus contributed the name "atomos", but not much else; they were wrong about nearly every detail. John Dalton is just about the earliest scientist to have had any significant contribution to atomic theory, and most of what we now consider atomic theory was developed since about 1900.
Neil bohr has done research in quantum mechanics.
He determined the number of positive charges in the nucleus of an atom. He was the first one to bring the concept of atomic number.
The Greek philosopher Epicurus (about 300 B.C.) and the Roman poet Lucretius (about 60 B.C.)
big balls that clack together make a good noice
Ernest Rutherford is known for his famous gold foil experiment, which led to the discovery of the atomic nucleus and the proposal of the nuclear model of the atom. His work helped to refine the understanding of the structure of the atom and laid the foundation for the development of modern atomic theory.
Atomic Theory
That the cake is a lie.
They didn't help with atomic theory, they created it.
Michael Faraday's main contribution to atomic theory was his work on electrolysis, which demonstrated that chemical compounds are composed of discrete particles and that these particles carry an electric charge. This provided evidence for the existence of atoms and laid the foundation for the development of the modern atomic theory.