| 词汇 | example_english_atomic-number |
| 释义 | Examples of atomic numberThese 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. 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. Due to its higher atomicnumber, strontium is more radio-absorbent than calcium, thereby resulting in a measured bone density increase disproportionate to the actual change in bone mineral. One of the results clearly indicates that the energy gain of the electron beam is a function of the electron density, independent of the atomicnumber of the gases. Low atomicnumber elements, sodium to calcium. A recent approach is to utilize an ultra-intense laser capable of generating positrons when striking a high atomicnumber target, such as gold. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The names combine syllables that represent the digits of the atomicnumber, followed by -ium. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In some cases they are more penetrating than gamma radiation, which is impeded in materials of high atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Elements are presented in order of increasing atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The atomicnumber of an element is the number of protons in its nucleus. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The scattering length varies from isotope to isotope rather than linearly with the atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In an uncharged atom, the atomicnumber is also equal to the number of electrons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In the case of transmission electron microscopy, opaqueness to electrons is related to the atomicnumber, i.e., the number of protons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Low atomicnumber also makes beryllium relatively transparent to energetic particles. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. He continued to study these nuclear reactions in other light (low atomicnumber) nuclei through the 1930s. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The lanthanides elute in order of decreasing atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This arrangement reflects the "periodic" recurrence of similar properties as the atomicnumber increases. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. As atomicnumber increases, shells fill with electrons in approximately the order shown at right. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. With increasing atomicnumber, the experimental difficulties of producing and identifying a new element increase significantly. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. An atom's electronegativity is affected by both its atomicnumber and the distance between the valence electrons and the nucleus. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This rule argues that elements with odd atomic numbers have one unpaired proton and are more likely to capture another, thus increasing their atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. All group 3 elements have an odd atomicnumber, and therefore they have few stable isotopes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Since chlorine has a larger atomicnumber than hydrogen, it is the highest-priority group. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This technique has been shown to be useful to find materials with high atomicnumber in a background of material with a low atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A neutron in the new nucleus decays by beta-minus decay to a proton, creating a nucleus of higher atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Correspondingly, isobars differ in atomicnumber (or number of protons) but have the same mass number. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In the figure, mercury is to the right of gold, since the atomicnumber of gold is 79, that of mercury is 80. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Nuclei with the same atomicnumber but different numbers of neutrons are isotopes of the same element. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In the pursuit of a nontoxic contrast material, many types of high atomicnumber elements were evaluated. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Measurement of backscattered electrons elucidate the average atomicnumber of the area being scanned. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The standard presentation of the chemical elements is in the periodic table, which orders elements by atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Currently seven periods in the periodic table of chemical elements are known and proven, culminating with atomicnumber 118. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The number of protons in an atom is called its atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. However, as the atomicnumber increases, a higher proportion of neutrons is required to offset the mutual repulsion of the protons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The number of protons in the nucleus of an atom is referred to as its atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A clear transition from electron to photon emission is evident in this chart for increasing atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The atomicnumber uniquely identifies a chemical element. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. But gold's place in the periodic table (and thus its atomicnumber) was known to be 79. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Beryllium is the single exception to both rules, due to its low atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The current cutoff excludes elements with atomicnumber greater than 105. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In chemistry, a pure element means a substance whose atoms all (or in practice almost all) have the same atomicnumber, or number of protons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The amount of energy that individual atoms absorb depends on their atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For example, all carbon atoms contain 6 protons in their atomic nucleus; so the atomicnumber of carbon is 6. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Generally, the product nucleus has a different atomicnumber, and thus the configuration of its electron shells is wrong. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. If a term is associated with each locator then the atomicnumber will be the sum of all terms and a constant. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The abundance of elements peaked around the atomicnumber for iron, an element that could only have been formed under intense pressures and temperatures. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The complexation depends on halide ion numbers, atomicnumber of the alkali metal, the halide of which is added, temperature and solution ionic strength. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. X-rays interact weakly with low atomicnumber elements (e.g., hydrogen) and strongly with high atomicnumber elements (e.g. metals). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The tendency to lose electrons increases as the size of the atom increases, as it does with increasing atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The lanthanide elements are the group of elements with atomicnumber increasing from 57 (lanthanum) to 71 (lutetium). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Recently, researchers have added an unusual twist astrophysicists identify tellurium as the most abundant element in the universe with an atomicnumber over 40. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Am with helium ions, which produced atoms with an atomicnumber of 97 and which closely resembled the neighboring lanthanide terbium. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Whilst calcium is somewhat larger than magnesium, there is a steady decrease in size as atomicnumber increases from calcium to zinc. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. An element is defined by its atomicnumber, the number of protons in the atomic nucleus. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Bohrium has been detected in the decay chains of elements with a higher atomicnumber, such as meitnerium. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For elements above lead in atomicnumber, the decay chain typically ends with an isotope of lead. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The densities of the carbon group elements tend to increase with increasing atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The transactinide elements begin with rutherfordium (atomicnumber 104). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Transactinide elements are also transuranic elements, that is, have an atomicnumber greater than that of uranium (92), an actinide. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The company is named after the atomicnumber of gold. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The mass number therefore rises by a large amount while the atomicnumber (i.e., the element) stays the same. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. All elements up to atomicnumber 112, as well as elements 114 and 116, have received individual permanent names and symbols. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. One peak occurs at about (expressed by atomicnumber) strontium to ruthenium while the other peak is at about tellurium to neodymium. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. When the product nucleus is metastable, this is indicated by placing an asterisk () next to its atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The 2700 was not a development version number but came from the atomicnumber of cobalt, 27. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Scattering varies with the sample mass absorption, being greatest when mean atomicnumber is low. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In the standard periodic table, the elements are listed in order of increasing atomicnumber (the number of protons in the nucleus of an atom). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Consequently, elements in the same group tend to have a shared chemistry and exhibit a clear trend in properties with increasing atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The second-lightest, exclusively radioactive element, promethium, has an atomicnumber of 61. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Promethium is one of the two elements that do not have stable (non-radioactive) isotopes and are followed by (i.e. with higher atomicnumber) stable elements. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Due to the relatively gradual decrease in ionic size with increasing atomicnumber, the rare earth elements have always been difficult to separate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is not scientifically proven if any synthetic elements with atomicnumber above 108 are gases. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The new isotope's nucleus rapidly emits an electron, decaying into new element with a mass of 239 and an atomicnumber of 93. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It appeared that atomicnumber is nothing else than (positive) electric charge of the atomic nucleus of a particular atom. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. An atom's electronegativity is affected by both its atomicnumber and the distance at which its valence electrons reside from the charged nucleus. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It contains the name, symbol, atomicnumber, and mean atomic mass value for the natural isotopic composition of each element. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This has been found to be a function of the atomicnumber of the target atom and photon energy. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. However, spin-orbit coupling effects reduce the validity of the orbital approximation substantially for elements of high atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is the lowest atomicnumber element without any stable isotopes; every form of it is radioactive. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The number of protons within the atom's nucleus is called atomicnumber and is equal to the number of electrons in the neutral (un-ionized) atom. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It must however have a mass 17, and provided no other nuclear electrons are gained or lost in the process, an atomicnumber 8. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Heavy transuranic elements are difficult and expensive to produce, and their prices increase rapidly with atomicnumber. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. 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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