THE beautiful conception which inspires and co-ordinates practically the whole of modern atomic physics is the atomic model of Rutherford and Bohr. Its essential feature-the nucleus-was first put ...

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 ...

In 1913, Niels Bohr revised Rutherford's model by suggesting that the ... However, there was still a difference between the atomic number of the atom and the atomic mass. Bohr and other scientists ...

Students must understand atomic structure and how electrons are arranged. HS-PS1-8: Understand the composition of the nucleus of the atom to be able to develop models that illustrate nuclear changes ...

Scientists at Columbia Engineering have created a machine learning algorithm that can observe the pattern produced by ...

Save guides, add subjects and pick up where you left off with your BBC account. An element's atomic number defines it. An element with 17 protons will always be chlorine. However an element's mass ...

Many atomic nuclei have a magnetic field similar to that of Earth. However, directly at the surface of a heavy nucleus such ...

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 ...