When a neutron inside an atom decays, it produces a proton, an electron, and a neutrino.
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。
By 1911, scientists had already measured the charge and mass of an electron. But no one was sure how the atom was structured.
在1911年之前,科学家认为电子带有电荷以及质量,但没有人很确认原子是怎样组成的。
This extension of the photoelectric effect, in which one photon knocks one electron off the edge of an atom, could make physicists reconsider when light is a wave and when it's a particle.
在这种光电效应的延伸中,一个光子从原子的边缘打出一个电子,这可能要使物理学家们重新考虑光在什么情况下是波,什么情况下是粒子。
We can observe the interaction of the atom and the nanotube as the electron is trying to tunnel, and this offers us a chance to peek at some of the interesting dynamics that happen at the nanoscale.
通过电子尝试隧穿这一过程,我们不仅可以观察到原子与纳米管之间的相互作用,还可以一窥发生在纳米量级上的动力学效应。
Such ultra-precise clocks are based on the quick vibrations of a single aluminum ion, an atom that has lost one electron, held in a vacuum and confined by electromagnetic fields.
如此极其精确的时钟是建立在单一铝离子的快速振动,铝离子就是包含在真空中受电磁场约束的失去一个电子的原子。
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。
One can picture this single electron spin caught on the nanotube as an artificial atom, " says researcher from University of Copenhagen and participant in the study, Jonas Hauptmann.
人们也可以把被碳纳米管捕捉的单电子自旋当成一个人造的原子。”哥本哈根大学研究员,这项研究的参与者,Jonas Hauptmann说。
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。
You start with liquid metal one, liquid metal two, you have the atom ratios proper, they mix, electron transfer occurs and poof, it is clear and colorless. Sorcery.
从液态金属一,液态金属二开始,你有合适的原子比例,混合它们,电子转移发生且被证实了,产物是透明无色的,有点辣味。
A second of time, for instance, is now defined in terms of an electron transition of the cesium atom. And the meter is tied to the speed of light.
比如说,秒就是根据铯原子内部的电子跃迁时间来下的定义,而米的定义则和光速有关。
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。
A chemical bond in which one atom loses an electron to form a positive ion and the other atom gains to electron to form a negative ion.
一个原子失掉一个电子来形成一个正离子,另一个原子得到一个电子来形成一个负离子的化学键。
Bohr was able to predict the wave lengths of the light from the makeup of the atom, and the jump from electron orbit to electron orbit.
玻尔根据原子的结构,和在电子轨道间的跳跃情况,就能预见光的波长。
Some electron collisional transfer rates between excited states of the atom can be calculated from this model using experimental data of both sensitized and direct resonant fluorescence.
用敏化荧光和共振荧光的实验数据,可由该模型定出由于电子与原子碰撞而产生的原子能级间的转移速率。
The velocity distribution function of the electron gas is measured by using Franck-Hertz experiment instrument, and the dynamical process of collision between electron and argon atom is analyzed.
利用夫兰克-赫兹实验仪测量了电子气体的速度分布函数,并分析了电子与氩原子碰撞的动力学过程。
The molecular morphology was observed directly by atom force microscope (AFM) and transmission electron microscope (TEM).
采用原子力显微镜及透射电镜直接观测分子形貌。
So now we can go back and think about filling in these electron configurations for any atom.
实用现在我们返回来再考虑,关于填充任意原子,电子构型的问题。
Scanning electron microscope (SEM) and atom force microscope (AFM) were used to characterize the morphologies of the AAO template, respectively.
并采用扫描电子显微镜(SEM)及原子力显微镜(AFM)对AAO模板表面及内部结构进行了表征。
Using ab initio method, the minimum energy conformations and netcharge distribution have been studied for H_2CN radical isomers formed by addition ofa H atom (or an electron) to HCN (or HNC) molecule.
用量子化学从头计算法研究了HCN、HNC分子与H原子和电子加成生成的H_2CN自由基异构体的最低总能量构象和净电荷分布。
A short - lived association of an electron and a positron bound together in a configuration resembling the hydrogen atom.
电子偶素,正电子素电子与正电子的短暂结合物,两者的结合物与氢原子的结构十分相似。
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。
Positron or electron-atom collision theory is a main and fundamental area of atomic and molecular physics.
正(负)电子与原子的碰撞理论是原子与分子物理主要的研究领域。
The object particle means to the microcosmic particle that its static mass is not zero, for example, electron atom molecule and so on.
实物粒子是指静止质量不为零的微观粒子,如电子、原子和分子等。
The energy and the elliptical orbit of the electron in hydrogen-like atom are derived from formula inverse square attraction and Sommerfeld's quantized conditions.
利用平方反比引力给出的关系式和索末菲量子化条件推导出类氢原子的椭圆轨道和能量。
The difference between bonded atom and the free one in state is that the overlap of electron cloud of bonded atoms in a molecule is considered.
束缚原子不同于自由原子之处,是束缚原子考虑了在不同分子中电子云的不同重叠,将计算结果与实验及其它计算结果进行了比较。
And when we take the wave function and square it, that's going to be equal to the probability density of finding an electron at some point in your atom.
当我们把波函数平方时,就等于在某处,找到一个电子的概率密度。
And when we take the wave function and square it, that's going to be equal to the probability density of finding an electron at some point in your atom.
当我们把波函数平方时,就等于在某处,找到一个电子的概率密度。
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