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。
A molecule of water consists of two atoms of hydrogen and one atom of oxygen.
水分子由两个氢原子和一个氧原子构成。
Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water.
两个氢原子和一个氧原子结合组成一个水分子。
An atom itself is a complete whole, with its electrons, protons and neutrons and other elements.
原子本身是个整体，含电子、质子、中子以及其他组成部分。
Each one is about the size of an atom.
每一个都有一个原子的大小。
They take an atom of lead, accelerate it, and have it collide with an atom of nickel.
他们选取一个铅原子，将其加速，让它与镍的原子碰撞。
What we can do is to try using the classical description of the atom, and see where this takes us.
我们能做的就是试着用经典力学描述原子，看看我们会得到什么。
Graphene is a flat sheet of carbon just one atom thick—with the carbon atoms arranged in a honeycomb lattice.
石墨烯是一种只有单原子厚度的碳原子平面层——碳原子按蜂窝状晶格排列。
When we talk about orbitals in multi-electron atoms, they're actually lower in energy than the corresponding H atom orbitals.
当我们讨论多电子原子的轨道时，它们的能量实际上比对应的氢原子轨道要低。
They take up a teeny bit, but when we're thinking about the set up of the atom, we don't have to account for them as using up a lot of the mass.
它们占据了非常小的一部分，但当我们考虑原子的构造的时候，不用考虑它们会占用很多的质量。
我可以把原子1号放在这里。
I don't believe there's an atom of meaning in it.
我不相信这里面有任何意义。
"Come in," said the carpenter, not having an atom of strength left with which to stand up.
“进来吧。”木匠说，他连站起来的力气都没有了。
We are going to go into the atom and try to understand the scientific basis for this observed behavior.
我们将深入研究原子并试图理解这种观察行为的科学基础。
It is arranged according to increasing atomic number, which is the number of protons in each atom of an element.
它是根据原子序数的增加来排列的，原子序数是一种元素单个原子的质子数。
Such united atom approximations have been used in simulations of biological membranes.
这种联合原子近似已被用于生物膜的模拟。
That is to say in a given atom.
也就是说对于一个给定的原子。
Well, I could put atom one here.
好，我可以在这里放一个原子。
This is electron volts per atom.
这是每个原子所具有的电子伏特。
Atom two, I can put anywhere else.
对第二个原子，我可以放在别的地方。
Each one about the size of an atom.
每个体积元的体积都只有一个原子的大小。
可能这里有一个原子。
A tritium atom has two extra neutrons.
氚原子多了两个中子。
Each atom has three degrees of freedom.
每个原子有三个自由度。
We call this process atom site separation.
我们将此过程称为原子站点分离。
That is to say the instant atom arrangement.
也就是原子的几何排布类型。
Small as/though the atom is, we can smash it.
尽管原子很小，我们可以击碎它。
And, secondly, the bulk of the atom is positive.
其次，原子的主体是带正电荷的。
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