那么氦原子核的电荷量是多少呢？
原子核的电荷量是多少？
原子核的影响引起超精细结构。
原子核的结合能是极大的。
核子密度分布是原子核的一个重要性质。
Nucleon density distribution is one of the most important characters of an atomic nucleus.
原子核的低能集体谱依赖于它的核子数。
Low-lying collective spectrum of a nucleus depends on its nucleon number.
相对而言，对于原子核的了解就少得多了。
Atomic nuclei, in contrast, have remained far more inscrutable.
原子核的体积大约是原子的一万亿分之一。
它表征了原子核的大小。
我们现在对原子核的许多认识来自散射实验。
Much of what we know about nuclei comes through scattering experiments.
靠近原子核的电子比外层轨道上的电子结合得紧。
Electrons closer to the nucleus are held more tightly than those in the outer orbits.
铁原子在围绕其原子核的不同轨道上有26个电子。
Iron atoms have 26 electrons in different orbitals around their nuclei.
对原子内部或原子核的研究称作核科学，或称核子学。 。
The study of the insides of atoms, or of atomic nuclei, is called.
质子虽然很重，但要受原子核的排斥，因为它们都带正电荷。
The proton, although it was heavy, would be repelled by nucleus, since they both have positive charges.
而就芯片而言，诺加雷特博士打算利用电子而非原子核的自旋。
In chips, Dr Nogaret proposes to use the spin of the electron rather than the spin of the atomic nucleus.
用推转壳模型计算研究了原子核的高速转动运动及其结构特性。
We used the cranking shell model to investigate the high-spin motions and structures of atomic nuclei.
就此而论，它控制由带负电荷的电子与正电荷原子核的形成的原子能级。
As such, it governs-among other things-the energy levels of an atom formed from negatively charged electrons and a positive nucleus.
介绍人类认识原子和原子核的历史过程，包括与之相关的著名实验和理论。
The structures of atoms and atomic nuclei are explained, with some historic experiments and theories.
原子核的半径，相对于整个原子的半径来说，是1比10000这个数量级。
The radius of the nucleus as compared to the radius of the entire atom is on the order of about one to 10,000.
因为这种碰撞会引起个体原子核的反作用，只要有适用的仪器就可以观测到这种反作用。
Such collisions should cause individual atomic nuclei to recoil, and with the right apparatus such recoils can be observed.
它能让粒子通过不可逾越的物理障碍，或让电子不用动能就脱离原子核的吸引力。
It can allow a particle to pass through a physical barrier that should be impenetrable, or can allow an electron to escape from the pull of the nucleus without having the kinetic energy to do so.
某些伽马射线在靠近原子核的附近经过，进入到转化为个电子和正电子的过程，研究人员说。
Some of these gamma rays pass near atomic nuclei, in the process transforming into an electron and a positron, researchers said.
如果你们数的话，原子核的数是，我们用它乘以πr的平方，得到横截面积，除以1。
So, the number of nuclei, 119 if we were to sit and count these as well, is 119. So, we'll multiply that by just pi, r squared, to get that cross-section, and divide all of that by 1 .
认为相对论性氧原子核的这类碎裂现象为氧原子核的结团模型提供了直接的实验证据。
The fragmentation phenomena of the relativistic oxygen nuclei provide a direct experimental evidence for the cluster model of the oxygen nuclei.
当对人体组织施加一个强磁场时，原子核的磁旋就会排列整齐，这就能生成一个强度足以让天线探测到的信号。
When a powerful magnetic field is applied to the tissue, the nuclei's magnetic spins align, generating a signal strong enough for an antenna to detect.
当对人体组织施加一个强磁场时，原子核的磁旋就会排列整齐，这就能生成一个强度足以让天线探测到的信号。
When a powerful magnetic field is applied to the tissue, the nuclei's magnetic spins align, generating a signal strong enough for an antenna to detect.
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