查询词典 atomic nucleus

Radioactive series: Any of four sets of unstable heavy atomic nuclei that undergo a series of alpha decay and beta decay until a stable nucleus is achieved.

放射性系：四组不稳定的重原子核，通过一系列α衰变和β衰变直至达到稳定的核为止。

I clearly under- stand that pellet is an atomic nucleus, but the small light spot is an electron cloud.

我清楚地明白，那小球就是原子核，而小亮斑则是电子云。

Lanthanides belong to the sixth cycle of the periodic table Ⅲ B family, are all solid metal, they are La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, holmium, erbium, thulium, ytterbium, and lutetium were 15 kinds of metals and their periphery are two layers of electronic 5d16s2, while the peripheral third layer f orbital but never zero to 14, so the external electronic structure of 4f0-145d16s2, and therefore these elements in oxidation number are to 3, very close chemical properties, extraction, when it is difficult to separate them they are mostly multi-element mineral mix, more difficult to increase refining, and their atomic number of 57-71, one by one to increase the number of protons the nucleus, and thus extranuclear electron of gravity is also growing, so that atomic radius decreases with increasing atomic number Z, which makes lanthanides contraction, ionic radius is also reduced, which also makes Zr, Hf, Nb and Ta, Mo and W, the atom and ionic radius very close to each other they also determine a similar nature, resulting in difficult separation, also the tribe Ⅷ of the fifth cycle, ruthenium, rhodium, palladium, and the sixth cycle, osmium, iridium, platinum is very similar in nature, thus The six elements, said platinum group elements.

镧系元素属于周期表第六周期中ⅢB族，全部是固体金属，它们是镧、铈、镨、钕、钷、钐、铕、钆、铽、镝、钬、铒、铥、镱和镥共十五种金属元素，它们的外围两层的电子均是5d16s2，而外围第三层的f轨道电子却从零增加到14个，所以外围电子结构为4f0－145d16s2，而使这些元素氧化数均为＋3，化学性质极为接近，提炼时很难分开，它们的矿石又大多是多种元素混在一起的，更增加提纯难度，它们的原子序数为57－71，核内质子数逐个增加，因而对核外电子引力也不断增强，使原子半径随原子序数Z增加而减小，这就使镧系元素收缩、离子半径也缩小，这也使得Zr和Hf，Nb和Ta、Mo和W等原子和离子半径都很接近、也决定了它们彼此性质类似，以致难以分离、也使第Ⅷ族中第五周期的钌、铑、钯和第六周期的锇、铱、铂在性质上极为相似，因而称这六个元素为铂系元素。

After a consideration of the movement revision of the atomic nucleus,by using a variation wave function of a parameter k to discuss the ground state energy for the B+++ ion to carry on the variation computation..

考虑对原子核运动的修正后，通过使用一个带松弛坐标参数k的变分波函数对B+++离子的非相论基态能量进行了变分计算。

Be able to ionization happened in molecule or atom in atmosphere under machinery , brightness , static electricity , chemistry or biological energy source effect, whose outer layer electron abjunction atomic nucleus, these lose the electronic molecule or the atom is called the positive ion or the positive ion with positive charge , us.

大气中的分子或原子在机械、光、静电、化学或生物能作用下能够发生电离，其外层电子脱离原子核，这些失去电子的分子或原子带有正电荷，我们称为正离子或阳离子。

The quantumism type of electron out of atomic nucleus is represent at discontiguous energy state,薛定谔equation can find the logical result only at some specifically situations, specifically situations are describe as quantum number.

核外电子的量子化特征表现在其能量状态的不连续性，薛定谔方程只有在某些特定的条件下，才能得到合理的解，表示这些特定条件的物理量就称为量子数。

Week 12 Spin of electron, forth quantum number, description of hydrogen atom with quantum mechanics, Pauli exclusion principle, shell distribution of electrons out of atomic nucleus.

第12周电子的自旋-第四个量子数；氢原子的量子力学描述；泡利不相容原理；元素原子核外电子的壳层分布。

CAS radiation technology services company in Shanghai of the Chinese Academy of Sciences, the Ministry of radiation technology company in Shanghai's technology subsidiary, and the Chinese Academy of Sciences radiation technology company in 1989 by the Chinese Academy of Sciences of Nuclear Science and Physical and Chemical led the organization of the Chinese Academy of Sciences, owned by high-energy physics Shanghai by the atomic nucleus, Lanzhou Modern Physics, Plasma Physics in Hefei, the Changchun Applied Chemistry, Hefei Chinese Scientific and Technical University jointly established a joint venture and technical input, built for the cable factory in Yantai, Changshu Cable Factory, Liyang Cable Factory, Huaian cable factory Electronic contracting, such as the establishment of a special radiation cross-linking cable production lines and a number of radiation center and computer and new materials production base, by the relevant State Council ministries and provincial and municipal leaders on the importance and recognition, that was the first national high-tech Enterprise units, radiation technology company in 2002 to reform the merger into a new high-tech companies, and the Shanghai Technology Services Division of the Department of independent legal entities and by relying on the Chinese nuclear radiation and high-tech base for the successful trial production of 200-nanometer tetrafluoroethylene Ethylene special engineering plastics ultra-fine powder, consisting mainly expected to add new type of dispersing agent, detergent, antioxidant Kangfu agent, the preparation of a motor vehicle and vessel efficient use of lubricating oil additives series.

中国科学院辐射技术公司上海服务部系原中国科学院辐射技术公司在上海的技术子公司，而中国科学院辐射技术公司是1989年由中科院数理化局核科学处牵头组织中国科学院所属的高能物理所，上海原子核所、兰州近代物理所、合肥等离子物理所、长春应用化学所、合肥中国科技大学共同合资并投入技术建立的，建成后为烟台电缆厂、常熟电缆厂、溧阳电缆厂、淮安电缆厂等承包建立了电子辐照交联特种电缆生产线和一批辐照中心和计算机及新材料生产基地，受到国务院有关部委和有关省市领导的重视和表扬，并被国家认定的第一批高技术企业单位，2002年辐射技术公司进行体制改革合并成新的高技术公司，而上海技术服务部系独立法人单位并依托中科院原子核所辐照基地的高新技术及试制成功的200纳米聚四氟乙烯特种工程塑料超细粉，以此为主料加上新型的分散剂、清净剂、抗氧抗腐剂等，配制成汽车用和船舶用的高效润滑油系列添加剂。

Outstanding scientist whom European atomic nucleus in― in― in follower in devout God research organizes row 奥纳 many 维s with 勒 whole life concentrate on with the divine esse in proof in means of science.

虔诚的上帝信徒――欧洲原子核研究组织的杰出科学家列奥纳多维特勒毕生致力于以科学的手段证明神的存在。

Week 15 Wave function, Schrodingger equation, infinite deep potential well in one dimension. Spin of electron, forth quantum number, description of hydrogen atom with quantum mechanics, Pauli exclusion principle, shell distribution of electrons out of atomic nucleus.

第15周波函数；薛定谔方程；一维无限深势阱；氢原子的定态薛定谔方程和求解的主要步骤；解的物理意义；电子的自旋-第四个量子数；氢原子的量子力学描述；泡利不相容原理；元素原子核外电子的壳层分布。

I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援，我们正徵召国家所有各种的力量：我们的外交及发展，我们的经济力量与道德劝说，所以你们与其他军人不须要孤独地负起国家安全的责任。