1CHEMISTRY-RELATIVE ATOMIC MASSthe mass of a hydrogen atom 1/1H is equal to 1/12 of the mass of a carbon-12 atom,so its relative isotopic mass is 1.A magnesium atom 24/12Mg is twice as heavy as a carbon-12 atom,so its relative isotopic mass is 24再给另一个例子不要用英文角度解释...
(chemistry) the ratio of the atomic mass of an element to half the atomic mass of carbon 相似短语 relative atomic mass相对原子质量 atomic mass原子量,原子质量 relative atomic weight相对原子量 effective atomic mass有效原子质量 atomic mass unit原子质量单位 ...
(Chemistry) the ratio of the average mass per atom of the naturally occurring form of an element to one-twelfth the mass of an atom of carbon-12. Symbol: Ar Abbreviation: r.a.m. Former name: atomic weight Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © Harper...
这就是说的相对分子质量的事 肯定能翻译过来吧 基本意思就是说 一个氢原子的的质量是碳12原子质量的12分之一，所以氢的相对原子质量为1 镁原子的质量是碳原子质量的2倍，所以镁原子的相对原子质量是24.可能你不知道这个东西：国际规定把一个碳-12原子的质量分为12等份，（碳原子有好几种，其中有...
relative atomic mass 英[ˈrelətiv əˈtɔmik mæs] 美[ˈrɛlətɪv əˈtɑmɪk mæs] 释义 n. 原子量 英英释义 Noun 1. (chemistry) the ratio of the atomic mass of an element to half the atomic mass of carbon-12...
the ratio of the average mass per atom of the naturally occurring form of an element to one-twelfth the mass of an atom of carbon-12. Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005 relative atomic mass[′rel·əd·iv ə′täm·ik ′mas] (chemistry) ...
SpecialEnglishforChemistry(SEC)主讲 孙强强 Chapter1 TheChemicalElementsandTheirRelativeAtomicMasses Keywordschemicalelement化学元素relativeatomicmass相对原子质量atomicweight原子量invariant不变量radioactiveelement放射性元素isotope同位素half-time半衰期uncertainty未确定值source来源IUPAC（InternationalUnionofPureandApplied...
= 2.0158 + 32.066 + 63.996 = 98.078 Citing this page: Generalic, Eni. "Relative molecular mass."Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split.24 Dec. 2024. <https://glossary.periodni.com>. Back to top
不過,負責訂定化學專有名詞及量度標準事宜的國際純粹與應用化學聯合會(International Union of Pure and Applied Chemistry,IUPAC)已決定在新的元素週期表上,以一組數值範圍表示以上十個元素的原子質量。 chem.jingkung.com [...] organizations active on teachers’ issues, including issues of: relative, thoug...
relative molecular mass- (chemistry) the sum of the relative atomic masses of the constituent atoms of a molecule molecular weight mass- the property of a body that causes it to have weight in a gravitational field chemical science,chemistry- the science of matter; the branch of the natural ...