So why don't you tell me what the formal charge should be on the sulfur atom of thionyl chloride?
那么请大家来告诉我亚硫酰氯中,的硫原子应该有多少形式电荷?
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。
So when we talk about formal charge, basically formal charge is the measure of the extent to which an individual atom within your molecule has either gained or lost an electron.
说到形式电荷,基本上形式电荷就是,单个原子在形成分子之后,是得到了电子还是失去了电子的一种量度。
So, I've got this tiny volume with, in the case of gold 79 plus of charge, and I've got some electrons out here somewhere, and the vast majority of the atom is nothing.
我认为这个小体积里面,比如金的79个正电荷,电子在外面的某些地方,原子里面大部分是空心的。
In all of the known chemical compounds of the noble gases, the noble-gas atom has a net positive charge.
在为人所知的所有稀有气体化合物中,稀有气体原子具有净正电荷。
So, let's say we have an atomic number of 3, 3 that means we have 3 electrons, so we better hope to get our neutral atom that we have a charge of plus 3in the nucleus.
这也是很合理的,因为Z就是原子序数,假设原子序数是,那就有3个电子,那我们就希望,性原子有个带3个正电荷的原子核。
The oxygen atom has a slight negative charge while thehydrogen atoms share a compensating positive charge.
氧原子有轻微的负电荷,而氢原子则带对应的正电荷。
Deuteron: the nucleus of a deuterium atom consisting of a proton and a neutron regarded as a subatomic particle with unit positive charge.
氘核:氘原子的原子核,由一个质子和一个中子组成,被视为带单位正电荷的亚原子。
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。
So, the question then is what is the spatial distribution of charge inside the atom?
因此,接下来的问题是,原子内部的电荷,在空间如何分布?
Each atom would have a very small net charge.
每一个原子都会有一个很小的净电荷。
When an atom loses one or more electrons it acquires a positive charge and is known as a cation.
当原子失去一个或多个电子时,它就带正电荷并被称之为阳离子。
And ion, which is an atom or group of atoms with an electrical charge.
和离子,它是一个原子或原子的电荷组。
In fact the experiment could have revealed a residual charge as small as? E per atom and none was observed.
事实上,这个实验是能够测出小至每个原子?e的剩余电荷的,然而并未观察到任何变化。
So that means that the more stable molecule is going to be this molecule here, which actually puts the negative charge on be more electronegative atom.
因此这意味着更稳定的分子,应该是这一个,它真正把负的电荷放到了,电负性更高的原子上。
The ABEEM/MM force field for protein model is the fluctuating charge model for protein combined atom-bond electronegativity equalization method (ABEEM) and molecular methanics(MM).
MM蛋白质力场模型是应用于蛋白质体系的原子-键电负性均衡方法(ABEEM)与力场(MM)相结合的浮动电荷模型。
Visible light absorbing compounds can also occur from one electronic atom to another atom arising from the transition charge transfer absorption bands in charge transitions.
化合物吸收可见光还可以发生电子从一个原子到另一个原子的跃迁而产生荷移吸收带发生电荷跃迁。
Some parameters such as molar refractivity, frontier orbit energy, dipole moment, atom net charge of triazines were obtained by using the method of quantum-chemistry calculation.
通过量子化学计算方法得到三嗪化合物的摩尔折射率、前线轨道能量、偶极矩、原子静电荷等参数。
So even if we strip an atom of all of its electrons, we still have that same amount of positive charge in the nucleus.
所以即使把一个原子的所有电子都拿走,原子核还是带那么多的正电。
Scientists have proved that a complete atom has no electrical charge.
科学家证明一个完整的原子不带电荷。
The positive charge in the atom is spread over the whole atomic volume.
原子中的正电荷分布在整个原子体积上。
By introducing "the effective nucleus charge number for the potential", the physical features of argon atom field have been discussed.
通过引入“对势函数的有效核电荷”,讨论了氩原子场的物理特征。
This paper discusses the influence on the oxidation number of each sulfur atom when the charge possesses different position in thiosulfate, polythionate and so on.
本文讨论了硫代、连多硫酸根等中所带电荷在不同位置时对氧化数所产生的影响,提出了确定硫代、连多硫酸根等中每个硫原子氧化数的方法。
An atom containing an equal number of protons and electrons is electrically neutral, otherwise it has a positive or negative charge and is an ion.
原子含有相同数目的质子,电子电气中立的,否则它有一个积极或消极的收费,是一种离子。
An atom containing an equal number of protons and electrons is electrically neutral, otherwise it has a positive or negative charge and is an ion.
原子含有相同数目的质子,电子电气中立的,否则它有一个积极或消极的收费,是一种离子。
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