1.What is a proton, neutron, and electron?什么是质子,中子和电子?The proton is a subatomic particle with an electric charge of +1 elementary charge.The neutron is a subatomic particle with no net electric charge and a mass slightly larger than that of a proton.Proton and neutron are usually...
So when a proton up when the N pole, N pole near the neutron must be down, then the magnetic properties between protons and neutrons will cancel each other, but in fact never happen. So how neutron is maintained between the two proton affinity for? It wants to keep the left side of ...
atomic nucleus, the proton will exchange a meson at the extremely quick speed with neutron, the son will turn into a proton while losing a meson, will turn into a neutron when the proton get a meson among them. No doubt, it is positive charge that is exchanged. Because proton exchange ...
百度试题 题目中国大学MOOC: The optimum proton to neutron ratios is when the strong nuclear force is largest.相关知识点: 试题来源: 解析 1:1 反馈 收藏
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They are (obviously) much smaller than the atom itself and have the following properties: Particle Symbol Mass (atomic mass unit u) Charge Proton p 1 +1 Electron e 1/1836≈ 0.0005 ≈ zero -1 Neutron n 1 0(neutral) ≈ means "approximately equal to" The nucleus of an atom: Each atom...
Present knowledge of the proton and neutron pairing energies Δ p and Δ n, deduced from nuclear masses, is reviewed and an attempt is made to find general trends in the data. The analysis shows that, besides the well-known smooth slow decrease with A, the pairing energies also contain a...
A proton is simply the nucleus of an ordinary hydrogen atom, the lightest atom, and has a unit positive charge. A neutron is an uncharged particle of about the same mass as the proton. The number of protons in a given nucleus is the atomic number of that nucleus and determines which ...
This is relevant in neutron star crusts, which are solid, so the ions are immobile. Another application is to the solar wind on scales below the proton gyroscale, where the ions create a smooth motionless background. The induction equation with just the Hall effect included leads to ...
(weakly interacting massive particles), which are thought to be ten to a hundred times the mass of a proton. However, their weak interactions with "normal" matter make them challenging to detect. Among these, neutralinos — hypothetical particles that are heavier and slower than neutrinos — ...