原子由原子核(nucleus)和围绕着原子核的电子(electron)组成。原子里有质子(proton)和中子(neutron)。质子带正电荷,中子不带电,电子带负电荷。对于一个原子来说它拥有的质子和电子数量是一样多的,所以它达成了电荷数的均衡。 原子外围的电子可以被剥离原子,从而让原子变成一个离子(ion)。根据哥伦布定律(columb's l...
We investigate the effect of a microscopic three-body force on the proton and neutron superfluidity in the 1S0 channel in β-stable neutron star matter. It is found that the three-body force has only a small effect on the neutron 1S0 pairing gap, but it suppresses strongly the proton 1...
just a little less than the sum of themasses of a proton and an electron. Such a neutronwould appear to be the first step in the combinationof the elementary particles towards the formation ofa nucleus. It is obvious that this neutron may help usto visualise the building up of more comple...
可否翻译出原体,在给出英文答案?1.What is a proton,neutron,and electron?2.What is an element,mixture,
The present paper reports high-accuracy cross-section data for the 2H(n,nnp) reaction in the neutron-proton (np) and neutron-neutron (nn) final-state-interaction (FSI) regions at an incident mean neutron energy of 13.0 MeV. These data were analyzed with rigorous three-nucleon calculations to...
The results of the total fission cross sections measurements fornatPb,209Bi,232Th,233U,235U,238U,237Np and239Pu nuclei at the energy proton range 200鈥 1000... AA Kotov,LA Vaishnene,VG Vovchenko,... - American Institute of Physics 被引量: 27发表: 2005年 Pre-neutron emission mass distri...
Two-quark correlations due to gluon exchange give corrections to both the proton and neutron spin-dependent structure functions in the Bjorken sum rule. Th... F Myhrer,AW Thomas - 《Phys Rev D Part Fields》 被引量: 86发表: 1988年 The New (g-2) Experiment: A proposal to measure the ...
Answer: About −29 eV (measured relative to a widely-separated electron and proton). You can calculate this directly from Coulomb's law.1 PRESSURE IN NEUTRON STARS, METALS, ATOMS, ETC. 3 Question 2e: What's the actual binding energy for the electron in a ground-state hydrogen atom?
The pKa values of the coordinated aquo ligands of four diaquocobalt(III)complexes of water-soluble porphyrins in aqueous solutions are measured using proton NMR spectroscopy. The aggregation of cobalt(II) complexes of water-soluble porphyrinin aqueous solutions is observed by Ill NMR spectra for ...
摘要: The paper demonstrates the estimation of 1-MeV equivalent (Si) neutron fluence from radiometric monitor data without prior spectrum knowledge and without estimation of the neutron fluence spectrum.>关键词: covariance matrices dosimetry neutron detection neutron spectroscopy radiometry 1 MeV 1-MeV ...