In this paper, the measurements of atom energy level lifetime with the laser two photon induced fluorescence have been stated.
本文论述了激光双光子感应荧光法对原子能级寿命的测量。
When crack starts to grow, the normal stress and average atom energy at the crack tip in atomistic simulation agree well with the results of continuum analysis.
分子动力学模拟和宏微观分析均得到裂纹起始扩展的临界时刻、裂尖应力场和原子平均能量。
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。
As a neutrino strikes an atom, the energy of the collision warms the immediate surroundings, causing them to expand ever so slightly and trigger a minuscule shock wave of a specific shape.
当一个中微子撞击原子时，碰撞产生的能量会使周围环境受热，使其发生微小的扩张膨胀，并且触发产生一种形状特殊的微型冲击波。
But a magnesium atom would carry two electrons, so a battery storing a given amount of energy could be nearly halved in size and weight.
但镁原子每次可以携带两个电子，这样的话在储存相同能量时可以使电池的大小和重量减半。
So, if we have energy that's released, would you say that the chlorine ion is more or less stable than the chlorine atom?
那么，如果我们放出了能量，你认为氯离子比氯原子，更稳定还是更不稳定呢？
Because here what we have is some atom that we're studying, in the case, it's going to be a gas, and we hit it with a photon that has some incident energy.
因为这里我们要研究的是一些原子，在这种情况下，一般是气态的，然后我们令一个，具有一定初始能量的光子打上去。
An unstable atom gives off its excess energy until it becomes stable. The energy emitted is radiation.
不稳定原子在达到稳定状态前，需要释放出自身多余的能量，这一能量即辐射。
Thus, in 1967, SI adopted a more precise definition based on the frequency of the radiation a caesium atom emits when it flips between two energy states.
所以，在1967年，SI采用了一个更为精确的制定办法，该办法基于一个铯原子在两个能级之间跃迁时的辐射频率。
What we've learned so far is as a first approximation, what we want to do is put the atom with the lowest ionization energy in the middle here.
我们之前所学的可以作为第一近似，我们要做的是把电离能，最低的原子放在中间。
So a plus two ion means that we're removing two electrons from the atom and the electrons that we're going to remove are always going to be the highest energy electrons.
一个2价正离子，我们要移除的两个电子，我们要移除的两个电子，将会是，最高能量的电子。
An unstable atom gives off its excess energy until it becomes stable.
不稳定的原子释放出多余的能量，直到变得稳定。
So if we can figure out the binding energy, we can also figure out how much energy we have to put into our atom in order to a eject or ionize an electron.
所以如果我们可以计算出结合能，我们也可以计算出,我们需要注入多少能量到原子中,去逐出或电离一个电子。
So, thinking about ionization energy, which atom would you put in the middle here?
那么，从电离能的角度考虑，大家会把哪个原子放在中间？
But, in fact, we can also talk about the ionization energy of different states of the hydrogen atom or of any atom.
但实际上我们也可以讨论氢原子，或者其它任何原子的其它能级的电离能。
In the piece Tesla explains that the Van DE Graaff generator, developed in 1929, cannot create energy but that it can separate the charges within an atom to be stored and utilized later.
在文中，特斯拉解释了1929年开发的范德·格拉夫起电机不能创造能源，但是可以分离原子内部的电荷并以备后用的原理。
Now this is a good place to start, because we are very familiar with ionization energy, we've been talking about it it's that minimum energy required to remove an electron from an atom.
现在这是一个开始下面内容的好地方，因为我们已经很熟悉电离能了，我们从很久以前就一直在讨论，它是从一个原子中，拿走一个电子所需要消耗的最低能量。
European scientists say they have set a record for high-energy collisions of protons in the world's largest atom smasher, mimicking conditions close to the "Big Bang" that created the universe.
欧洲的科学家说，他们在世界最大的原子对撞机上创下了高能量质子对撞的最新纪录，模拟创造宇宙的“大爆炸”状态。
So we should be able to calculate a z effective for any atom that we want to talk about, as long as we know what that ionization energy is.
我们应该可以计算出任何一个,我们想要谈论的原子的有效电荷量，只要我们知道电离能是多少。
And that means radiation of energy, and that energy has to come from inside the atom itself.
意味着有能量的辐射，这些能量来自于原子本身。
We can then look at uranium 238 which has a relatively low absorption thermal energy range and essentially has no fission cross section which is why we call uranium 238 a fertile atom.
我们能看看铀238，它有一个，相对低的吸收热能范围，基本上没有裂变横截面，那就是为什么我们称铀238为可转换核素。
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。
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。
The atom vibrates between two energy levels allowing the clocks accuracy down to a second in 3.7 billion years.
原子在两个能量等级之间震荡，所以钟的精确度为运行37亿年后误差不超过正负一秒。
That means it lacks sufficient energy, like x-rays and gamma rays, to remove an electron from an atom or a molecule to make a charged particle that can damage DNA and biomolecules.
也就是说，微波辐射与X射线和伽玛射线不同，是不具有足够的能量的，从而不会使原子或分子失去电子而变成带电粒子，造成DNA及其它生命分子的损坏。
I guess you know about the fantastic charge of energy packed in the mass of the atom.
我想你一定知道原子质量中负荷的不可思议的巨大能量。
For example, for the 2 s, again what you see is that the multi-electron atom, its 2 s orbital is lower in energy than it is for the hydrogen.
举例来说对于2s轨道，在多电子原子，中可以看到，它的2s轨道的能量低于氢原子的。
So, for example, in a hydrogen atom, if you take the binding energy, the negative of that is going to be how much energy you have to put in to ionize the hydrogen atom.
例如在氢原子里面，如果你取一个结合能，它的负数就是。
Ionized by energetic starlight, a hydrogen atom emits the characteristic red H-alpha light as its single electron is recaptured and transitions to lower energy states.
氢原子被高能的恒星光离子化之后，在它的单个电子重新被捕获并跃迁到低能级上时会放出典型的红色h - alpha光。
It is assumed that the emission and absorption of light energy by an atom or molecule is not a continuous precess but occurs in steps.
假定原子或分子发射光能和吸收光只能不是一个连续的过程，而是阶梯式发生的。
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