Standard Atomic Weight- This is the expected atomic weight or relative atomic mass of an element sample in the Earth's crust and atmosphere. It is an average of relative isotope masses for an element from samples collected all over the Earth, so this value is subject to change as new eleme...
So, when the term atomic weight was coined back in 1808, isotopes were unknown and Earth gravity was the norm. The difference between atomic weight and atomic mass became known when F.W. Aston, the inventor of the mass spectrometer (1927) used his new device to study neon. At that time...
Understand the definition of atomic mass, atomic number, and atomic weight. Discover how to find atomic mass, and learn what an atomic number...
The atomic mass of an atom is the mass of that atom compared to some standard, such as the mass of a particular type of carbon atom. The terms atomic mass and atomic weight are often used interchangeably, although, strictly speaking, they do not mean the same thing. Mass is a measure ...
A microscale experiment using simple instrument was applied to the determination of Cuatomic weight. 利用自制的简易气体发生器和洗气装置对铜原子量测定微型实验作了进一步的探索与实践. 期刊摘选 展开全部 英英释义 Noun 1. (chemistry) the ratio of the atomic mass of an element to half the atomic mass...
atomic weight 听听怎么读 英[əˈtɔmik weit] 美[əˈtɑmɪk wet] 是什么意思 n. 原子量,各种元素原; 英英释义 atomic weight n.(chemistry) the ratio of the atomic mass of an element to half the atomic mass of carbon 同义词:relative atomic mass...
单词atomic weight 释义atomic weight (also relative atomic mass), ratio between the mass of one atom of an element and one-twelfth of the weight of an atom of carbon 12 原子量(某元素的一个原子的质量与十二分之一的碳12原子量的比值).
(1820) (atomic mass) n. The mass of an elemental isotope relative to that of the C-12 isotope of carbon, whose mass has been set at exactly 12.0000 atomic units (daltons). For most elements, the...Springer New YorkEncyclopedic Dictionary of Polymers...
美 英 na.【化】原子量 复数:atomic weights 权威英汉双解 英汉 英英 网络释义 atomic-weight — see also relative atomic mass 释义: 全部,原子量
atomic weight,relative atomic mass mass- the property of a body that causes it to have weight in a gravitational field combining weight,eq,equivalent weight,equivalent- the atomic weight of an element that has the same combining capacity as a given weight of another element; the standard is 8...