The quantum model of the hydrogen atom was proposed by Niels Bohr in 1913. Bohr’s model was a significant advancement over previous atomic models, as it introduced the idea of quantized energy levels within an atom. Based on the work ...

The physicist who first proposed the nuclear model of the atom was Ernest Rutherford. In 1911, Rutherford conducted a series of experiments, known as the gold foil experiment, in which he directed alpha particles at a thin sheet of gold. ...

The famous scientist who discovered the law of gravitation was Sir Isaac Newton. In 1687, in his groundbreaking work Philosophiæ Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy), Newton formulated the law of universal gravitation. He proposed that every particle ...

The wave theory of light was first proposed by the Dutch scientist Christiaan Huygens in the 17th century. In 1678, Huygens suggested that light travels in the form of waves, much like ripples on the surface of water. He formulated ...

The discovery of the electron is credited to British physicist J.J. Thomson in 1897. Thomson’s groundbreaking work involved experiments with cathode rays, which are streams of charged particles. While conducting experiments in a cathode ray tube, he observed that the ...