我们讨论的是概率，但我们说的是最可能的半径，离原子核更远。
We are talking about probability, but what we're saying is that most probable radius is further away from the nucleus.
重水之所以重是因为水中氢的重量是普通氢的两倍（它的原子核中有一个质子和一个中子，而不仅仅是一个质子）。
Heavy water is heavy because the hydrogen in it weighs twice as much as ordinary hydrogen (it has a proton and a neutron in its nucleus, instead of just a proton).
这么大的原子核不可能是稳定的，但在足够长的时间内，在真空附近组装一个原子核以观察真空的衰变是可能的。
A nucleus that large cannot be stable, but it might be possible to assemble one next to a vacuum for long enough to observe the decay of the vacuum.
重氢是原子核中多一个中子的氢。
A deuterium atom is a hydrogen with an extra neutron in its nucleus.
用原子核变换方法获得的物质。
这是锂原子核加上一个电子。
但是我知道它的原子核中有11个质子。
中心有个带正电的原子核。
原子核都是携带正电，推动其结合相当之难。
Because nuclei are positively charged, they are mightily difficult to push together.
1贝可相当于每秒转换(分解)1个原子核。
One Becquerel corresponds to the transformation (disintegration) of one atomic nucleus per second.
我们有一个在轨运行的电子和一个静止原子核。
它还有一个“原子核模式”，能阻止所有网页。
It even has a 'nuclear mode' which blocks all websites for as long as I want.
而加速器可能产生核聚变，将原子核融合在一起。
But accelerators could potentially produce nuclear fusion, which fuses atomic nuclei together.
这些微粒通过增加云层内原子核量来加大云层密度。
The particles increase the density of clouds by increasing the amount of nuclei contained within.
它并不只是简单地绕原子核旋转，而是同时进行公转和自旋。
It doesn't simply orbit the nucleus, but as it orbits it spins.
最后，研究人员用调频范围的无线波将自旋写在磷原子核上。
Then they used FM-range radio waves to “write” the spin onto the phosphorus nuclei, as explained by the University of Utah.
而元素的编号是依据元素原子核中质子的数量确定的。
我们有一些放射性同位素，这些同位素会自发变成其他的原子核。
You've got some radioactive isotopic that can spontaneously decay into some other nucleus.
核聚变是发生在恒星内部的原子核融合，是地球上长期追求的目标。
Nuclear fusion - the melding of atomic nuclei that happens inside stars - is a long-sought goal on Earth.
太阳和星星就是日常生活中轻原子核结合时释放的巨大能量的证明。
The sun and stars are daily proof of the great energy released when light atomic nuclei join together.
核聚变中，小原子核相互碰撞，形成大原子核，释放能量。
Fusion involves colliding small atomic nuclei together to form larger ones, and thus releasing energy.
我们知道是两个原子核之间的，电子密度保持两个原子在一起成键的。
And we know that it's electron density between the nuclei that holds two atoms together in a bond.
然后，用第二个磁场短时轰击这些原子核，使其脱离第一个磁场阵列。
These nuclei are then zapped briefly with a second magnetic field that knocks them out of alignment with the first one.
所以，我认为宇宙类似于原子核(atomic nucleus)。
So, what I'm thinking of is the universe is kind of like an atomic 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。
As such, it governs-among other things-the energy levels of an atom formed from negatively charged electrons and a positive nucleus.
从最通俗的角度讲，核反应实质上就是发生在原子核中的一种反应过程。
A nuclear reaction is at its most basic nothing more than a reaction process that occurs in an atomic nucleus.
我们不能改变质子，它们埋藏在原子核内，但是我们能够增加或减少电子。
We cannot do anything about protons, they are buried in the nucleus, but we can add or subtract electrons.
融合重氢同位素需要大量能量，部分原因是因为原子核带正电并相互排斥。
Fusing heavy hydrogen isotopes requires lots of energy, partly because the nuclei are positively charged and repel each other.
而强大的亚原子粒子束可以用来粉碎原子核，其强烈程度足以使它们融合。
But a powerful beam of subatomic particles could be used to crush nuclei together strongly enough so they fuse.
碳链末端的原子发射电子到周围的磷光屏，得到原子核周围电子云的图像。
The atom at the tip of the chain emitted electrons onto a surrounding phosphor screen, rendering an image of the electron cloud around the nucleus.
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