从20世纪20年代开始,爱丁顿也研究一些与量子力学、时空有关的问题。 1936年,爱丁顿出版《质子和电子的相对论》(Relativity Theory of Protons and Electrons),论述了量子理论,研究了一些常数之间的关系。不过,他做的都是一些拼凑类型的数字游戏。例如,当物...
We report energy distributions of electrons emitted from Al and Mg surfaces bombarded by 3-100-keV/amu hydrogen and deuterium ions. The energy spectra contain structure consistent with the decay of bulk plasmons, even below the velocity threshold expected from current theories. To explain the result...
Explain your answer.- Size decrease // size become smaller- because when proton increase, electron also increase- force attraction between nucleus and valence electron increase[3 marks](c) Magnesium atom can form magnesium ion. State the number of protons and electrons in magnesium ion?Protons: ...
Angular and Energy Dependence of Cross Sections for Ejection of Electrons from Water Vapor. II. 15-150-keV Proton Impact Absolute values of cross sections for electron ejection by protons of 15-150 keV energy have been measured as a function of the angle and energy of the ele... MA Bo...
What ion has 12 protons and 10 electrons? What is the condensed electron configuration for the following element/ion? a. Te b. Te^2+ What is the condensed electron configuration for the following element/ion? a. Zr b. Zr^2+ Which element's 4+ ion would have the following electron conf...
Mg-porphin : Analogous calculations, as for the FBP molecule, were performed also for PMg where two protons of the opposite pyrrole rings are replaced by the Mg2+ cation. This makes PMg even a more symmetric species (D4h point group of symmetry). 172 electrons create the ground state ...
An iron ion contains 26 protons, 27 neutrons, and 23 electrons. What is the net charge of the ion?What is the total charge of all the electrons in a 13 kg bar of silver? (Silver has 47 electrons per atom and an atomic mass of 108 u.)...
The model takes into account stripping due to collisions with ambient electrons and heavy particles (protons and He +2) which becomes increasingly important for more energetic ions, as well as radiative and dielectronic recombination due to collisions with electrons. Spatial diffusion and Coulomb ...
A comparison of the measured mean ionic charge of Mg, Si, and Fe with model calculations, including the effect of energy dependent impact ionization by protons and electrons shows, that the acceleration occurs in a dense environment, low in the corona, at distances less than 2 solar radii.B...
The detailed structure of Mg9 + density, temperature, and outflow speed is determined by the Coulomb momentum and energy exchange as well as electromagnetic interactions with electrons and protons in the three-fluid model of the streamer. The results of the model are in good qualitative agreement...