Some of the alpha particles were deflected by small angles. Most of the alpha particles were able to pass through the gold foil undeflected. Observations from the Experimentįrom the scattering experiment, Rutherford made the following observations: As a result, these particles got scattered and produced bright flashes on a circular screen coated with a substance called zinc sulphide. These alpha particles were first passed through a fine slit and then made to strike against the gold foil. Therefore, this discovery of electrons proved that some particles were themselves the fundamental building blocks of atoms. The discovery of electrons proved for the first time that atoms themselves were made of fundamental particles, which were the constituents of all atoms and therefore, atoms did have a fine structure that was unique to every different atom. The earliest belief about the structure of the atom was attributed to Dalton, who suggested that matter was made of tiny indivisible particles called ‘Atoms.’ Thomson, Ernest Rutherford, Niels Bohr, and Erwin Schrödinger will be discussed here.Ĭontinue reading to know more details on Atomic Models, characteristics, etc. As a result, there are five basic Atomic Models that have aided us in better defining and understanding the structure of the atom. Since the beginning of atomic structure research, a multitude of models has been developed and used to better understand how an atom behaves. But where do all these subatomic particles reside in an atom, and what is an atom’s structure? All of these issues will be answered in this article, as well as how key Atomic Model discoveries were made. We also know that electrons, protons, and neutrons are the three subatomic particles. Atomic Models: We are all aware that everything in our environment is made out of matter.
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