电子非常轻，因此在原子量中甚至没有计算它。
Electrons weigh very little, so they aren't even counted in the atomic weight.
它是最接近原子的原子量的整数。
各种原子的原子量是不同的。
并非所有的铀原子都有相同的原子量。
分子量用与原子量相同的单位来表示。
Molecular weights are expressed in the same units as atomic weights.
氢分子仅由两个原子量相同的氢原子组成。
A hydrogen molecule consists of only two hydrogen atoms with the same atomic weight.
具有不同原子量的同一种元素被称为同位素。
Atoms of the same element that differ in their atomic weight are called isotopes.
电子非常轻，因此在原子量中甚至没有计算它。
Electrons weigh very little, so they are n't even counted in the atomic weight.
和该化合物中每个分子所含每种元素的原子量的数目。
The chemical formula also shows the number of atoms of each element in one molecule of a compound.
一种分子的分子量就是构成它的原子成分之原子量总和。
The molecular weight of a molecule is the sum of the atomic weights of the constituent atoms.
依据这个新标度，原先的化学原子量数值只需作很小的变动。
The new scale required only minimal changes to the values that had been used for chemical atomic weights.
实际计算中是把组成该物质分子式的各原子的原子量求和而得。
It is calculated in practice by summing the atomic weights of the atoms making up the substance's molecular formula.
1863年，纽兰茨所作。他将56种元素按原子量上升次序排列。
An arrangement of 56 elements in order of ascending atomic weight made by Newlands in 1863.
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。
They have the same atomic number and hence nearly identical chemical behaviour but different atomic masses.
发生特殊相互作用的可能性和物质的原子量以及伽马射线的能量有关。
The probability of a specific interaction occurring depends on the atomic number of the material and the energy of the gamma ray.
能量释放是在原子核在高温高压环境下聚变成大原子量的原子核时产生的。
Energy is released as atomic nuclei are forced together at high temperatures and pressures to form larger nuclei.
我无法摆脱那种有某种东西失去平衡而令人不安的感觉，我的原子量有了轻微的改变。
I can't shake off the nagging sense that something is off kilter; my atomic weight is slightly altered.
周期表(1869)：所有的化学元素按它们的原子量逐渐增加的顺序有组织地排列。
Periodic table (1869) : Organized array of all the chemical elements in approximately increasing order of their atomic weight.
不过，我们还希望填充一些元素名、元素符号、元素号和原子量，可以在模板中使用。
However, you also want to include the name, symbol, atomic number, and atomic weight; you can select each of these by using an.
一种元素中原子的平均重量，通常相对碳2的重量来表示，碳2的重量定为十二个原子量单位。
The average mass of an atom of an element, usually expressed relative to the mass of carbon 2, which is assigned 2 atomic mass units.
一种元素中原子的平均重量，通常相对碳12的重量来表示，碳12的重量定为十二个原子量单位。
The average mass of an atom of an element, usually expressed relative to the mass of carbon 12, which is assigned 12 atomic mass units.
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。
Atomic number 18, atomic weight 39. 948, is a rare gas. 1894 by the British chemist Rayleigh and Ramsay found.
当普通钴（59Co）吸收了一个中子后生成的是相对原子量60的钴。钴60有放射性且半衰期超过五年。
When common cobalt (59Co) absorbs a neutron the result is 60Co, which is radioactive and has a half-life of more than five years.
此时原子处于激发状态，外层电子充填内层电子的空位并伴随释放出特征X射线（其能量与物质的原子量有关）。
Normally, the ejected electron will be replaced within the material and a characteristic X-ray will be emitted with an energy that is dependent on the atomic number of the material.
原子量小的元素及原子量大的元素都将用于制造液晶显示屏、紧凑型荧光灯及混合动力车的电池与风力涡轮机所用的坚固永磁体。
Both light and heavy elements go into making LCD screens, compact fluorescent bulbs, and the strong permanent magnets used in hybrid car batteries and wind turbines.
一种碳的天然放射性同位素，原子量为4，半衰期为5，780年，用于测定古代生物标本，地质标本或考古遗迹的标本的年代。
A naturally radioactive carbon isotope with atomic mass 4 and half-life 5,780 years, used in determining the age of ancient organic, geologic, or archaeological specimens.
不过，我们还希望填充一些元素名、元素符号、元素号和原子量，可以在模板中使用xbl：content元素来选择这些内容。
However, you also want to include the name, symbol, atomic number, and atomic weight; you can select each of these by using an XBL: content element in the template.
不过，我们还希望填充一些元素名、元素符号、元素号和原子量，可以在模板中使用xbl：content元素来选择这些内容。
However, you also want to include the name, symbol, atomic number, and atomic weight; you can select each of these by using an XBL: content element in the template.
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