原子量（atomic weight）是指元素的原子经过化学变化后，形成稳定的同位素时，其质量数。
在英文范文方面，以下是一篇示例文章，供您参考：
标题：Atomic Weights and Their Importance in Chemistry
Atomic weights are crucial measurements in chemistry that provide valuable information about the properties of elements. These numbers represent the sum of the protons and neutrons in the nucleus of an element, and they determine its chemical behavior and physical properties.
For instance, carbon has an atomic weight of 12, which indicates that it has 6 protons and 6 neutrons in its nucleus. This makes it a stable isotope and contributes to its role in various chemical reactions. On the other hand, oxygen has an atomic weight of 16, which indicates that it has 8 protons and 8 neutrons. This contributes to its role as a key component in many chemical processes, such as respiration and photosynthesis.
Knowing atomic weights is essential for understanding the structure and function of compounds, as well as for developing accurate models of chemical reactions. Furthermore, atomic weights are used in calculations related to isotope labeling, mass spectrometry, and other advanced techniques in chemistry and related fields.
In conclusion, atomic weights play a crucial role in understanding the properties and behavior of elements and compounds. Understanding atomic weights is fundamental to any chemistry student or researcher, and knowing their values is essential for making accurate predictions and explanations about chemical phenomena.
原子量（Atomic Weight）是指一个原子实际的质量，通常以符号“A”表示。原子量的数值取决于原子的核电荷数和核子数，即原子中质子数和中子数的数量。
在英文中，atomic weight的英文范文可能包括以下内容：
Atomic weight is the actual mass of an atom, usually denoted by the symbol "A". The atomic weight is determined by the atomic number and the number of nucleons in the atom, i.e. the number of protons and neutrons in the nucleus.
Atomic weights are used to determine the chemical properties of elements and their compounds. For example, hydrogen has an atomic weight of 1, which is why it is a highly reactive gas in its elemental form.
Atomic weights are also used to calculate the masses of atoms in a sample, which can be used to determine the composition of a substance.
以上就是atomic weight在英文中可能出现的用法和含义。
原子量单位，表示原子质量大小的数值。
Atomic weight的英文范文最新变化如下：
Atomic weight is a unit of atomic mass, which represents the value of atomic mass.
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