a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead 相似短语 atomic number 91phr. 【化学】原子序数(指元素在周期表中按次序排列的序号)91镤 atomic numbern.[化]原子序数(指元素在周期表中按次序排列的序号) ...
“atomic number 91"的含义和定义 noun a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead 更多 英文 词典里"atomic number 91"的近义词 metal, Pa, metallic element是 英文 同义词词典中“atomic number 91"的热门同义词。
5.Radium, atomic number 88, atomic weight 2260254, is a natural radioelement, elements were derived from Latin, is intended to "ray." 镭,原子序数88,原子量2260254,是一种天然放射性元素,元素名来源于拉丁文,原意是“射线”。 网络释义 Atomic Physics And Atomic Nucleus Physics 原子物理与原子核物理...
Define atomic number 9. atomic number 9 synonyms, atomic number 9 pronunciation, atomic number 9 translation, English dictionary definition of atomic number 9. Noun 1. atomic number 9 - a nonmetallic univalent element belonging to the halogens; usually a
as the weight of one-twelfth of the mass of a carbon-12 atom considering that it is at rest. since protons and neutrons account for almost all of the mass of the given atom, the atomic mass of a given element is almost equal to its mass number. what is the atomic mass of elements...
118 elements and their symbols and atomic numbers name of the element symbol of the element atomic number hydrogen h 1 helium he 2 lithium li 3 beryllium be 4 boron b 5 carbon c 6 nitrogen n 7 oxygen o 8 fluorine f 9 neon ne 10 sodium na 11 magnesium mg 12 aluminium al 13 silicon...
elementsymbolatomic numberatomic weight Elements with an atomic weight given in square brackets have an atomic weight that is given as a range. Elements with an atomic weight in parentheses list the weight of the isotope with the longest half-life. ...
Define atomic number 72. atomic number 72 synonyms, atomic number 72 pronunciation, atomic number 72 translation, English dictionary definition of atomic number 72. Noun 1. atomic number 72 - a grey tetravalent metallic element that resembles zirconium c
varies from 0 to 2, as shown inFig. 2. Given this fact, to uniquely specify a specific nucleus, it is necessary to specify both the number of protons (and hence the element) and the number of neutrons. Alternately, because the nuclear mass numberAis specified by the total number of ...
and the mass numberA = Z + Nbecomes equal to 4, 8, 12, ... A given nucleus is labeled asAX where X denotes the element, e.g.,8Be for beryllium-8. Fig.1b–c sketch intuitive pictures for possibleαclustering in8Be and12C, respectively, whereαparticles are shown by mid...