observed abundanceoflightelement isotopes,particularly hydrogen, deuterium, and helium-4, [...] shawprize.org shawprize.org 独立于他人早期的研究,皮布尔斯认识到观察到的轻元素同位素,特别是氢、氘及氦-4的化学丰富度需要热大爆炸,这个大爆炸产生了今天可观察到的宇宙微波背景。
athe drive told us many things about kunming 驱动告诉我们许多事关于kunming[translate] axxxbunker.com xxxbunker.com[translate] aIsotopes. Atoms of the same element that have different atomic masses. 同位素。 有不同的原子质量同一个元素的原子。[translate]...
The instant invention relates to a process for separating a material into two or more parts in each of which the abundances of the isotopes of a given element differ from the abundances of the isotopes of the same material in said material. More particularly, the invention relates to a ...
Because each element is distinctive of its atomic number, all atoms of a particular element must have the same number of proton. The atomic number of carbon is 6. Then all kinds of carbon atoms must have 6 protons in their nuclei. So these atoms...
Isotopes are different forms of elements found in nature. Isotopes of each element contain the same number of protons, but a different number of neutrons. The more neutrons that are added to an element, the "heavier" it is. The heaviest isotope of an element represents the limit of how man...
Such anomalies [主语] are due to [谓语] the relative abundance of the "isotopes" or varieties of each element. [宾语] 4. 句子翻译 简单句 Such anomalies are due to the relative abundance of the "isotopes" or varieties of each element. 这种反常现象是由于同位素比较丰富或者各自元素的多样化...
Isotopes -We can also write isotopes as such: uranium-235 or uranium-238 -The ending number is the mass of the isotope Complete the following chart: Isotope Practice Here are three isotopes of an element: The element is ___. The number 6 refers to the ___. The numbers 12, 13, and...
When an element's atoms havedifferent numbers of neutronsthey are said to be isotopes of that element. Three isotopes of hydrogen have been described above. Example 1 Carbon atoms exist naturally with 6, 7 or 8 neutrons. Since each atom of carbon has 6 protons, the isotopes must have atomi...
Since isotopes have different masses, the average atomic mass of all isotopes of the element is listed on the periodic table, hence the decimal values. Average masses are calculated using the percentage of abundance of each isotope; therefore, the more abundant the isotope, the more it will inf...
Data collection was performed by rapid peak-hopping (5–30 ms) dwell time between selected isotopes of each analyte element for a period of 60 s. A background signal was collected during the first 30 s of analysis. The laser was fired for 60 s from which the middle 30 s were used ...