英语解释 a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)相似短语 atomic number 2 phr. 原子量2;氦 atomic number n.[化]原子...
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英汉 英英 网络释义 atomic-number n. 1. 原子序数(指原子在元素周期表中的序号)the number of protons in the nucleus (= centre) of an atom, which is characteristic of a chemical element. Elements are placed in the periodic table according to their atomic numbers . ...
Nickel Metallic chemical element, one of the transition elements, chemical symbol Ni, atomic number 28. 金属化学元素, 过渡元素之一, 化学符号ni, 原子序数28. 来自期刊摘选 2. R is a reference referring to effective atomic number directly. R是与有效原子序数直接相关的量. 来自期刊摘选 3. All eleme...
What is the definition of an atomic number? An atomic number of an element is the number of protons in all the atoms of that element. Atomic numbers are always whole numbers greater than zero, such as 1,2,3... since an atom cannot have a fractional number of protons. What is the di...
atomic number, the number of achemical elementin the periodic system and on theperiodic tablethat equals the number of protons in the nucleus of the atom. The elements are arranged on the table in order of increasing number of protons in the nucleus. Accordingly, the number ofprotons, which...
Element-specific X-Ray detection of electron paramagnetic resonance in thin films of quantum bits Synchrotron-based X-ray spectroscopy is a powerful tool to study element-specific magnetism. Here, X-ray detected paramagnetic resonance on molecular quantum bit candidates is demonstrated, paving the way...
2. Calculating Number of Neutrons: If we know the number of protons and the mass number of an element, we can also calculate the number of neutrons simply by subtracting its atomic number from its mass number. Solved Example Question: An atom has an atomic number of 9 and a mass number...
an element is a substance , all of ___ atoms have the same atomic number为什么选whose ? 请高手讲讲..相关知识点: 试题来源: 解析 首先句子后面是作定语的,由主句可以知道,修饰的是主语element.因为atoms是原子的意思,对于元素来说,逻辑关系自然是“元素里的原子”,所以element和atoms具有从属关系,用whose...