解析 atomic mass:原子质量 atomic number:原子数 原子质量是指此原子核中中子和质子的总质量(一般是指相对质量,就是Al质量=27之类的).原子数是指此原子中质子的数量,决定此原子属于什么元素.结果一 题目 atomic mass跟atomic number的詳細介紹 考試用 答案 atomic mass:原子质量 atomic number:原子数 原子质量是...
答案解析 查看更多优质解析 解答一 举报 atomic mass:原子质量 atomic number:原子数 原子质量是指此原子核中中子和质子的总质量(一般是指相对质量,就是Al质量=27之类的).原子数是指此原子中质子的数量,决定此原子属于什么元素. 解析看不懂?免费查看同类题视频解析查看解答 ...
Understand the definition of atomic mass, atomic number, and atomic weight. Discover how to find atomic mass, and learn what an atomic number...
What is Atomic Number & Mass Number - The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of every atom of that element. Visit BYJU'S to learn more about atomic numbers.
原子序原子序( (Atomic number)Atomic number)及質量數及質量數( ( Mass number) Mass number) 原子內的中子的數目質子的數目電子的數目故稱為原子序(atomic number)相等於原子不帶電荷相等於的總和質量數(mass number)不一定相等
The number of neutrons is represented by the neutron number ( N ). Because the mass of these nuclear particles is each approximately equal to one unified atomic mass unit (u), the sum of the protons plus neutrons is designated as the mass number ( A ). The mass of the electron is ...
原子质量数(mass number),以A表示,等于原子核中的质子数(Z)加上中子数(N)。由于质子和中子的质量非常接近原子质量单位,因此原子的质量数可以近似地看作是该原子的质量(以AMU为单位)。例如,氢-1(^1H)的原子质量数为1,其原子质量也接近1 AMU。 4. 与相对原子质量的区别:原子质量与...
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Mass number is not shown on the periodic table but is often found when elements are shown as symbol-mass number (such as oxygen-16). What is the difference between atomic mass and atomic number? Atomic mass is the average weighted mass number of all isotopes of a given element. It is ...