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。
Then, there'd be an atomic number, for which there was no known element.
然后会出现原子序数，代表了未知元素。
Early versions had the incorrect atomic number for some elements.
早期版本的一些元素原子序数不正确。
Early versions did not list an element for every atomic number.
早期的版本并没有为每个原子序数列出一个元素。
The prediction was that an element with the same atomic number existed somewhere, but it just hadn't been found yet.
据预测，某个地方存在一种原子序数相同的元素，但它还没有被发现。
But right now I am going to give it to you as Mendeleev enunciated it. Atomic number, we will learn later, is the improvement.
但是现在我就要告诉你们，门捷列夫发表了它，原子序数，我们之后会学到，那是很大的进步。
Here is atomic radius versus atomic number.
这是原子半径和原子序数。
PROFESSOR: five — there's five valence electrons, but the atomic number is actually seven.
教授：5，有5个价电子，但原子序数是7。
What I am looking at here is boiling point as a function of atomic number.
我在看的是非典，作为原子序数的功能。
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。
This is because even though z, the atomic number is still increasing, we are also getting further away from the nucleus.
从有效核电量方面来想一想为什么，这是因为，尽管，Z，原子序数依然在变大，但我们同时也在离原子核越来越远。
An element's atomic number is the number of protons in its nucleus.
一种元素的原子序数是其原子核中的质子数。
In order to improve radiation resistivity, the elements with smaller atomic number should be selected as dopants in both core and cladding of the fiber.
指出选用原子序数小的元素作光纤掺杂剂会有利于光纤抗辐照性能的提高。
In the 20th century, when the structure of atoms was understood, the table was seen to precisely reflect increasing order of atomic number.
20世纪，在了解原子结构后，周期表可精确地反映原子序数增加的顺序。
That is why this says atomic number, but for most intents and purposes we can say this could be atomic mass.
那就是为什么这里说原子序数，但如果没有意图和目的，我们就说是原子质量。
They have the same atomic number and hence nearly identical chemical behaviour but different atomic masses.
它们有相同的原子序数，因此化学行为几乎完全一样，但原子量不同。
No change in atomic number is possible without a radical change in properties.
性质不发生根本的改变，原子序数的改变是不可能的。
Atomic number 18, atomic weight 39. 948, is a rare gas. 1894 by the British chemist Rayleigh and Ramsay found.
原子序数18，原子量39。948，是一种稀有气体。1894年由英国化学家瑞利和拉姆赛发现。
One of them here I happened to choose is boiling point versus atomic number.
其中之一，我已经选择的是，沸点及原子序数。
"Radioisotopes" refer to a certain type of elements producing radiation decay that have the same atomic number but different mass of nuclides.
放射性同位素，是指某种发生放射性衰变的元素中具有相同原子序数但质量不同的核素。
Compared with iodine, Gold has a larger atomic number and X-ray absorption coefficient.
金与碘相比，有着更高的原子序数和X射线吸收系数。
The electron range increases with decreasing atomic number and increasing incident beam energy E0.
电子射程随着原子序数的减少和入射束能量e0的增加而增加。
The dependence of relative intensity and frequency of bands of aromatic ring on the atomic number of lanthanides indicates the presence of a double-double effect.
芳香环谱带的相对强度和频率对于镧系元素原子序数的依赖关系表明双-双效应的存在。
This paper presents the studies of the dependence of soft X-ray emission on atomic-number and laser intensities by using a new diagnostic tool, pinhole transmission grating spectrograph (PTGS).
利用带有针孔的透射式光栅光谱仪研究了激光等离子体X射线辐射的原子序数依赖性和激光功率密度对辐射的影响。
Phosphorus Nonmetallic chemical element, chemical symbol P, atomic number 15.
非金属化学元素，化学符号P，原子序数15。
The density measurement technology of foam material with low atomic number was established by low energy X-ray radioscopy .
采用低能X射线对低原子序数泡沫样品进行透射照相，以胶片作为记录介质，对材料密度进行测量。
Boron: Semimetallic chemical element, chemical symbol b, atomic number 5.
硼：半金属的化学元素，化学符号B，原子序数5。
The electrode is made of high atomic number metal.
电离室电极用高原子序数的金属制造。
The results show that with the atomic number of I cluster elements increasing from the top down, they are easier to form complex salts with calcium sulfate, however, the rules is not obvious.
结果表明，I簇元素从上到下随原子序数增加，与硫酸钙形成复盐的难度逐渐降低，但规律性不明显。
The results show that with the atomic number of I cluster elements increasing from the top down, they are easier to form complex salts with calcium sulfate, however, the rules is not obvious.
结果表明，I簇元素从上到下随原子序数增加，与硫酸钙形成复盐的难度逐渐降低，但规律性不明显。
应用推荐