Neutrons and protons are bound together in the nucleus of an atom.
在一个原子的核内，中子和质子聚合在一起。
The internal circles of the Atom mirror the cosmos, at once a law-abiding nucleus of energy, and at the same time the concentric heavenly spheres spinning in the galaxy.
原子的内部轨道是宇宙的真实镜像，一边是遵守规则的能量核，另一边是在星系中旋转的同心球体。
As such, it governs-among other things-the energy levels of an atom formed from negatively charged electrons and a positive nucleus.
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。
Further, the nucleus is assumed to be the seat of the essential part of the mass of the atom, and to have linear dimensions exceedingly small compared with the linear dimensions of the whole atom.
进一步的，核被认为是，原子主要质量所在的地方，和整个原子线性尺度相比，核具有很好的线性尺度。
We're going to be looking at the solutions to the Schrodinger equation for a hydrogen atom, and specifically we'll be looking at the binding energy of the electron to the nucleus.
我们将研究下氢原子薛定谔方程的解，特别是电子和核子的结合能，我们将研究这部分。
This is partly explained because the bigger an atom is, the more weakly its outer electrons are bound to it (and hence the further those electrons are from the nucleus).
原子越大，其外层电子受原子束缚力越弱，这是解释铅和锡两者差别的一部分原因。
And what is discussed is that for a 1 s hydrogen atom, that falls at an a nought distance away from the nucleus.
我们讨论了对于氢原子1s轨道，它的最可能半径在距离原子核a 0处。
Deuteron: the nucleus of a deuterium atom consisting of a proton and a neutron regarded as a subatomic particle with unit positive charge.
氘核：氘原子的原子核，由一个质子和一个中子组成，被视为带单位正电荷的亚原子。
So in hydrogen atom a, I'll depict that here where the nucleus is this dot, and then the circle is what I'm depicting as the wave function.
在氢原子A里，我在这里把原子核画成一个点，这圆就是波函数。
Because what it tells is that we can figure out exactly what the radius of an electron and a nucleus are in a hydrogen atom.
我们可以，准确的算出，氢原子中，电子。
Quarks, which we also cannot see, are a model to explain the properties of the protons and neutrons in the nucleus of an atom.
夸克同样看不到，但它却是解释原子核中质子、中子性质的理论模型。
The factors influencing precipitating type of carbon atom in cast irons include: alloys factors, cooling rate and nucleus conditions of the melt.
影响铸铁碳原子析出形式的因素有：合金因素、冷却速度及熔液的核心状况。
That reminds me of atom: the movement of electron is irregular, however, it is always around the nucleus and within the atom.
这让我想起了原子：电子跑来跑去，没有规律，但始终围绕着一个核心在转。
This is partly explained because the bigger an atom is, the more weakly its outer electrons are bound to it and hence the further those electrons are from the nucleus.
原子越大，其外层电子受原子束缚力越弱，这是解释铅和锡两者差别的一部分原因。
And, as I mentioned, we left off and as we started back here to describe the atom and how the atom holds together the nucleus and the electron using classical mechanics.
我之前提及过，我们上次，讲到应用经典力学如何描述，一个原子以及原子如何把质子，和电子束缚在一起，今天我们要。
The nucleus of the atom is heaviest structure, and it occupies only a fraction of the volume of the atom.
原子核是最重的结构，而它仅仅占据原子体积的一小部分。
In a neutral atom, the protons in the nucleus are balanced by the electrons. An atom that has gained or lost electrons becomes negatively or positively charged and is called an ion.
在中性原子中，电子数和原子核的正电荷数相等，但有些原子可以拥有比原子核的正电荷更多或更少的电子，从而原子就带上负的或正的电荷，这类带电的原子称为离子。
Taking example for hydrogen atom, We discuss and quantitatively compute the change of the angular frequency of an electron moving around the nucleus in a magnetic-field.
本文以氢原子为例，讨论并定量计算了在磁场中电子绕原子核运动角频率的变化。
The nucleus of an atom consists of neutrons, protons and other particles.
原子核由中子、质子和其他粒子构成。
The nucleus of an atom consists of neutrons protons and other particles.
原子核由中子、质子和其他粒子构成。
The total mass of an atom is determined very nearly by the total number of protons and neutrons in its nucleus.
一个原子的总重量能够近似取决于这个原子核中的质子数和中子数之和。
Ann atom of oxygen has 8 protons and 8 neutrons in its nucleus, with 8 electrons circling about that nucleus.
一个氧原子在其原子核内有八个质子和八个中子，还有八个电子绕着原子核旋转。
The nucleus of an atom consists of neutrons, protons and other particles.
一束校准后的粒子流(原子、电子或分子)。
An atom of oxygen has 8 protons and 8 neutrons in its nucleus, with 8 electrons circling about that nucleus.
一个氧原子在其原子核内有八个质子和八个中子，还有八个电子绕着原子核旋转。
An atom of oxygen has 8 protons and 8 neutrons in its nucleus, with 8 electrons circling about that nucleus.
一个氧原子在其原子核内有八个质子和八个中子，还有八个电子绕着原子核旋转。
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