Learn what mass number and atomic number tell us about the protons, neutrons and electrons in science's current Rutherford-Bohr model of an atom.

In 1922, he was awarded the Nobel Prize in Physics for his work on the atom’s structure. Let’s find out more about his work on Bohr's Model of an Atom. What is Bohr's Model of an Atom?

Photo: Niels Bohr's research notes for his new atomic theory Rutherford's find came from a very strange experience. Everyone at that time imagined the atom as a "plum pudding." That is, it was ...

Books Received Published: 15 March 1924 (1) Atoms and Electrons (2) The Atom and the Bohr Theory of its Structure: an Elementary Presentation Nature 113, 378–380 (1924) Cite this article ...