試題詳解

36. Louis de Broglie's postulation that a particle has wave-like properties, together with Heisenberg's uncertainty principle, successfully rectified the major flaw in the Bohr-Sommerfeld model. (quantized energy states, and, electrons orbit around nucleus with well-defined values of momentum and position). However, it could not provide quantitative description of objects. Erwin Schridinger developed the wave equation to mathematically describe the energy and position of the clectron in space and time, taking into account the matter wave nature of the electron inside an atom. What are correct in the descriptions below?
(A) The de Brogie wavelength is λ = Ib/p where h is the Planck constant and p is the momentum.
(B) The Schrodinger waveftunction includes two parts which are about the kinetic energy and the potential energy of an electron.
(C) The wavefunction of an electron in an atom contains radial and angular distribution functions.
(D) When the radial distribution function R(r) is zero, it means the radial nodes (nodal surfaces) take place over "I", where "I'' is the angular momentum.
(E) The Hund's rule mentions the spin multiplicity, the number of unpaired electron plus one, 2n(1/2)+1.