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.
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.
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.
Neil bohr has done research in quantum mechanics.
Yes, Robert Oppenheimer made a significant contribution to New Mexico by leading the Manhattan Project, which resulted in the development of the first atomic bomb at Los Alamos. This project had a lasting impact on the state's economy and scientific community.
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.
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.
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.
Henry Moseley showed elements in the periodic table should be in order by their atomic number instead of atomic mass.
Neil bohr has done research in quantum mechanics.
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.
big balls that clack together make a good noice
James Chadwick's most significant contribution to physics was his discovery of the neutron in 1932, which helped to further our understanding of atomic structure and led to the development of nuclear physics. This discovery earned him the Nobel Prize in Physics in 1935 and laid the foundation for the subsequent development of nuclear energy and the atomic bomb.
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
Julius Lothar Meyer played a significant role in the development of the periodic table by independently publishing a periodic table of elements that showed the correlation between atomic volume and atomic weight. His work helped pave the way for the later development of the modern periodic table based on atomic number. Meyer's contribution, along with that of Dmitri Mendeleev, laid the foundation for our current understanding of the organization of elements.
Creation of the atomic bomb