| 词汇 | atomic-number |
| 释义 | atomic number noun[ C ] chemistry specializeduk /əˌtɒm.ɪk ˈnʌm.bər/ us /əˌtɑː.mɪk ˈnʌm.bɚ/ the number of protons found in the nucleus of an atom of a particular chemical, used as a way of listing the chemical elements in order in the periodic table原子数（某种化学物质的原子核中质子的数量，用于化学元素周期表中的排序） Physics: atoms, molecules & sub-atomic particles acceptor alpha particle anti-radical antilepton antimatter antineutrino benzene ring beta decay beta particle hadron Higgs boson interatomic interelectronic interionic molecularly monatomic multi-molecular multiparticle muon positron atomic number | American Dictionaryatomic number noun[ C ] physics the number of protons in the nucleus (= central part) of an atom of a particular chemical, used as a way of listing the chemical elements in the periodic table Examples of atomic numberatomic number The chemist is in the process of trying to discover the atomicnumber, but as yet is without evidence that the atomicnumber is 79. It must be noted that for measuring of higher temperature plasmas, higher atomicnumber materials are more suitable to diagnose the heating process. The difference can be explained by the dependence of collisional cross sections on the target atomicnumber. The dark contrast of the fossilized cell walls suggests that a light element (low atomicnumber), perhaps carbon, is still present. Effect of target atomicnumber on laser induced ablation pressure scaling. This variation increases with the atomicnumber of the projectile, but it is rather independent of the projectile energy in our domain. The property of being gold and the property of having atomicnumber 79 are metaphysical identicals and being gold supervenes on having atomicnumber 79. Conversely, the specific deposition energy per ion increases with increasing atomicnumber. It is clear that the average number of electrons lost per encounter increases with increasing target atomicnumber. Because of the high melting temperature and large atomicnumber, tantalum is sometimes used as the target material. Experimental scaling laws for mass-ablation rate, ablation pressure in planar laser-produced plasmas with laser intensity, laser wavelength, and target atomicnumber. For elements of low atomicnumber, calculations of radiative opacities with an explicit term-structure configuration are now possible. We can imagine an early chemist who has evidence that gold is an element with an atomicnumber. Successful realization of the plasma jet generation required a target material with the atomic number greater than that of aluminum, a short wavelength, and a relatively large focal spot radius. When the medium is primarily composed of low and medium atomicnumber elements, the medium's absorption of radiation is often dominated by absorption from well-separated core of spectral lines. See all examples of atomic number These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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