Which scientist proposed the "Plum Pudding" model of the atom, where negatively charged particles were scattered throughout a positively charged sphere?, J.J. Thomson, Niels Bohr, John Dalton, Ernest Rutherford, Who proposed the first modern atomic theory, postulating that all matter is made of indivisible atoms and that elements consist of identical atoms?, James Chadwick, Erwin Schrödinger, Democritus, John Dalton, Which scientist discovered the electron using cathode ray tube experiments?, Ernest Rutherford, Robert Millikan, J.J. Thomson, Niels Bohr, Who conducted the famous Gold Foil Experiment, leading to the discovery of the dense, positively charged atomic nucleus?, Werner Heisenberg, Ernest Rutherford, John Dalton, J.J. Thomson, Which scientist modified the atomic model by introducing quantized energy levels (orbits) in which electrons travel around the nucleus?, Louis de Broglie, James Chadwick, Ernest Rutherford, Niels Bohr, Who discovered the neutral subatomic particle known as the neutron in 1932?, Ernest Rutherford, J.J. Thomson, James Chadwick, Robert Millikan, Who determined the exact charge and mass of an electron using the famous Oil Drop Experiment?, J.J. Thomson, Robert Millikan, Niels Bohr, Max Planck, Which scientist developed the Quantum Mechanical Model of the atom, using wave equations to describe the region around the nucleus where an electron is likely to be found (orbitals)?, Erwin Schrödinger, John Dalton, Niels Bohr, Ernest Rutherford, Who formulated the Uncertainty Principle, stating that it is impossible to simultaneously know both the exact position and momentum of a subatomic particle?, Max Planck, Niels Bohr, Louis de Broglie, Werner Heisenberg, Which ancient Greek philosopher first proposed the concept of "atomos" (meaning indivisible particle), forming the earliest philosophical basis for atomic theory?, Plato, Democritus, Archimedes, Aristotle

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