the electron and nucleus
51Fine structure — Interference fringes, showing fine structure (splitting) of a cooled deuterium source, viewed through a Fabry Pérot étalon. In atomic physics, the fine structure describes the splitting of the spectral lines of atoms due to first order… …
52Rutherford scattering — In physics, Rutherford scattering is a phenomenon that was explained by Ernest Rutherford in 1911,[1] and led to the development of the Rutherford model (planetary model) of the atom, and eventually to the Bohr model. It is now exploited by the… …
53Halo nucleus — In nuclear physics, an atomic nucleus is called a halo nucleus or is said to have a nuclear halo if its radius is appreciably larger than that predicted by the liquid drop model, wherein the nucleus is assumed to be a sphere of constant density.… …
54compound-nucleus model — ▪ nuclear physics description of atomic nuclei proposed (1936) by the Danish physicist Niels Bohr (Bohr, Niels) to explain nuclear reactions as a two stage process comprising the formation of a relatively long lived intermediate nucleus and …
55Atomic electron configuration table — This is a table of electron configurations of atoms.It is currently being used by scientists to make new substances and understand the present ones better. After all it is the most important discovery in chemistry after the periodic table. See… …
56List of Irish inventions and discoveries — Irish inventions and discoveries are objects, processes or techniques which owe their existence either partially or entirely to an Irish person. Often, things which are discovered for the first time, are also called inventions , and in many cases …
57orbital electron — noun : one of the electrons that according to the theory of Rutherford and Bohr revolve in an orbit about the nucleus of an atom …
58Atom — The atom is the smallest unit of an element that retains the chemical properties of that element. An atom has an electron cloud consisting of negatively charged electrons surrounding a dense nucleus. The nucleus contains positively charged… …
59Atomic orbital — The shapes of the first five atomic orbitals: 1s, 2s, 2px, 2py, and 2pz. The colors show the wave function phase. These are graphs of ψ(x,y,z) functions which depend on the coordinates of one electron. To see the elongated shape of ψ(x,y,z)2… …
60Charge radius — The rms charge radius is a measure of the size of an atomic nucleus, particularly of a proton or a deuteron. It can be measured by the scattering of electrons by the nucleus and also inferred from the effects of finite nuclear size on electron… …
