原子本身是个整体，含电子、质子、中子以及其他组成部分。
An atom itself is a complete whole, with its electrons, protons and neutrons and other elements.
在一个原子的核内，中子和质子聚合在一起。
Neutrons and protons are bound together in the nucleus of an atom.
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).
每个原子团簇是由中子和质子组成的。
给定元素的所有同位素都含有相同的质子数，但它们的中子数不同，因此它们的原子质量也不同。
All the isotopes of a given element have the same number of protons, but differ in their number of neutrons, and hence in their atomic mass.
原子内的一个中子衰变后会产生一个质子、一个电子和一个中微子。
When a neutron inside an atom decays, it produces a proton, an electron, and a neutrino.
所以，我们可以间接得到中子数，因为我们知道质子数了。
So we get at the number of neutrons indirectly because we know the proton number here.
每一个中子或者质子的质量都是一个电子的两千倍。
Each proton (or neutron) has about two thousand times the mass of an electron.
在宇宙的扩大与冷却的过程中，这些粒子的一部分渐渐融合并组成了中子与质子。
As the universe expanded and cooled, some of these particles merged to form neutrons and protons.
如果你还有大把的钱，你可以把质子和中子分成组成它们的最小组分：夸克，然而你还是只会得到拥有南北极的磁体。
With a pile more money, you can cut the proton and neutrons into their smallest parts, quarks, you will still have magnets with North and South poles.
夸克是这种物质的最基本构造块之一，它被胶子束缚在一起形成亚原子粒子“混合物”，如质子和中子。
One of the fundamental building blocks of matter, called quarks, are bound together by gluons to form 'composite' subatomic particles such as protons and neutrons.
好吧，如果你有很多钱，你甚至可以把原子分成一些亚原子粒子：质子、中子和电子，但即使是这些小磁体，也还是有南北磁极。
Well, with a lot of money, you can cut even the atom into to subatomic particles: protons, neutrons and electrons, but even these little magnets still always have one North and South magnetic pole.
而随着宇宙的进一步冷却，这些质子与中子便有能力团聚一起并组成质量最小元素中的核子，这些元素即氢、氦与锂。
When it had cooled further, these protons and neutrons were able to get together to form the nuclei of the lightest elements-hydrogen, helium and lithium.
这是因为他们将完成与质子和中子的融合，而其融合采取方式是让核反应更容易快捷地发生。
This is because they would have combined with protons and neutrons in ways that made it easier and faster for other nuclear reactions to occur.
该裂变过程会利用直线加速器质子束产生的中子加以控制。
The fission process would be controlled using neutrons produced by a linear accelerator's proton beam.
同样地，质子和中子也应该有对应的反粒子。
In the same way the proton and neutron should also have their corresponding antiparticles.
这里面有质子和中子。
在当前有关物理学的“标准模型”中，包括质子、电子、中子以及大量更怪异粒子在内的每一种粒子都有其反粒子“镜像”。
Thecurrent "standard model" of physics holds that each particle -protons, electrons, neutrons and a zoo of more exotic particles - has itsmirror image antiparticle.
有相同的Z，相同的质子数，但是不同的A，也就是中子数不同。
They all have the same Z, the same proton number, but different A, which means number of neutrons varies.
如今，全美每个主要医疗中心均具备产生X光、质子、中子或重离子的加速器。
Today, accelerators producing X-rays, protons, neutrons or heavy ions can be found at every major medical center in the U.S..
磁星是中子星的一种，它的密度非常大，其质子和电子被迫结合形成中子。
Magnetars are a type of neutron star? An object so dense its protons and electrons have merged to form neutrons.
在各种钨同位素原子里有74质子，但有着不同的中子数。钨- 182有108个中子，而钨- 184有110个中子。
Isotopes of tungsten each have 74 protons in their atoms but different Numbers of neutrons - tungsten-182 has 108 neutrons, while tungsten-184 has 110.
如果发生巨变，穿过塑料的中子就会引发材料内质子反冲，从而留下痕迹。
If fusion was taking place, then neutrons flying through the plastic would cause protons within the material to recoil, leaving telltale tracks.
科学家尚未对质子和中子的内部构成形成完整的认识。
Internal composition of protons and neutrons is not examined completely.
20,28,50和82这几个数字对于质子和中子来说是很微妙的。
The Numbers 2, 8, 20, 28, 50 and 82 are magic for both protons and neutrons.
目前已知的最大中子数是126,82个质子和126个中子组成了元素周期表中最重最稳定的同位素。
The highest known magic number for neutrons alone is 126. Lead, with 82 protons and 126 neutrons, is thus "doubly magic" and the heaviest stable isotope in the periodic table.
此时温度降到10亿摄氏度，质子和中子开始形成原子核-带电原子的内核。
At a temperature of one billion degrees Celsius, protons and neutrons start to come together to form nuclei, the charged cores of atoms.
具备6个质子和6个中子，碳原子数通常为12。
With six protons and six neutrons, carbon normally has an atomic number of 12.
Jaffe和他的同事建立了一个类型的宇宙，其中底夸克比顶夸克轻，而质子比中子重1%。
Jaffe and his colleagues modeled one family of universes in which the down quark was lighter than the up quark, and protons were up to a percent heavier than neutrons.
强子（例如由夸克组成的微粒，包括中子和质子这样的重子）只有在宇宙大爆炸发生百万分之一秒后才得以形成。
Hadrons (i.e. particles made from quarks; including baryons like neutrons and protons) were only allowed to form 10-6 seconds after the Big Bang.
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