“binding energy”的概念、定义、翻译、参考文献-科学参考

binding energy

Physics

The energy equivalent to the mass defect when nucleons bind together to form an atomic nucleus. When a nucleus is formed some energy is released by the nucleons, since they are entering a more stable lower-energy state. Therefore the energy of a nucleus consists of the energy equivalent of the mass of its individual nucleons minus the binding energy. The binding energy per nucleon plotted against the mass number provides a useful graph showing that up to a mass number of 50–60, the binding energy per nucleon increases rapidly, thereafter it falls slowly (see nuclear stability). Energy is released both by fission of heavy elements and by fusion of light elements because both processes entail a rearrangement of nuclei in the lower part of the graph to form nuclei in the higher part of the graph.

Astronomy

The energy released when protons and neutrons bind together to form an atomic nucleus, or the energy required to break up that nucleus. The binding energy per proton or neutron is greatest for atoms with mass numbers in the range 50–65 (the iron peak). Energy is released when lighter atoms combine to form heavier ones (as in nucleosynthesis inside stars), provided the products are no heavier than iron. Conversely, when heavy atoms break down to lighter ones (e.g. in fission reactors) energy is also released, provided the products remain heavier than iron. The binding energy is the equivalent of the mass defect.

Electronics and Electrical Engineering

1. (symbol: E_B) The total energy released when protons and neutrons bind together to form a nucleus.
2. The energy required to release an extranuclear electron from a nucleus. The energy required to strip all the extranuclear electrons from a nucleus is the total electron binding energy. ionization potential.

单词	binding energy
释义	binding energy Physics The energy equivalent to the mass defect when nucleons bind together to form an atomic nucleus. When a nucleus is formed some energy is released by the nucleons, since they are entering a more stable lower-energy state. Therefore the energy of a nucleus consists of the energy equivalent of the mass of its individual nucleons minus the binding energy. The binding energy per nucleon plotted against the mass number provides a useful graph showing that up to a mass number of 50–60, the binding energy per nucleon increases rapidly, thereafter it falls slowly (see nuclear stability). Energy is released both by fission of heavy elements and by fusion of light elements because both processes entail a rearrangement of nuclei in the lower part of the graph to form nuclei in the higher part of the graph. Astronomy The energy released when protons and neutrons bind together to form an atomic nucleus, or the energy required to break up that nucleus. The binding energy per proton or neutron is greatest for atoms with mass numbers in the range 50–65 (the iron peak). Energy is released when lighter atoms combine to form heavier ones (as in nucleosynthesis inside stars), provided the products are no heavier than iron. Conversely, when heavy atoms break down to lighter ones (e.g. in fission reactors) energy is also released, provided the products remain heavier than iron. The binding energy is the equivalent of the mass defect. Electronics and Electrical Engineering 1. (symbol: E_B) The total energy released when protons and neutrons bind together to form a nucleus. 2. The energy required to release an extranuclear electron from a nucleus. The energy required to strip all the extranuclear electrons from a nucleus is the total electron binding energy. ionization potential.
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