obtained from the mass spectrum of a sample of strontium Mass / charge ratio %abundance84.0 0.5686.0 9.8687.0 7.0288.0 82.56Calculate the relative atomic mass of strontium in this sample.Give your answer to three significant figures.(2)(b) In which block of the Periodic Table is strontium ...
Atomic Mass and Mass Number:The atomic mass is a form of calculated average mass for all the atoms of an element. This differs from mass numbers in that a mass number refers to the mass of a specific atom or the atoms of an isotope of an element....
What is the average atomic mass of oxygen? Oxygen: Oxygen is a very important element for animals because it is required for cellular respiration. Plants generate oxygen in the chemical reaction known as photosynthesis. Oxygen is in the second row and sixteenth column on the periodic table. ...
2 CHEMISTRY-RELATIVE ATOMIC MASSthe mass of a hydrogen atom 1/1H is equal to 1/12 of the mass of a carbon-12 atomso 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...
The average atomic mass of an element is the sum of the atomic mass of each stable isotope of that element multiplied by its relative abundance in the universe.Answer and Explanation: Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a ...
1. The relative atomic mass of an element is always D I A the mass of an atom of the element relative to %2 the mass of a carbon-12 atom. B the mass of an atom of the element relative to the mass of a hydrogen atom.■ C the weighted mean mass of an atom of the element ...
Let the percentage of X-16 isotope =x The percentage of X-18 isotope =(100-x) From the information the average atoic mass of the element X is = (x xx16)/(100)+((100-x)xx18)/(100) But the given atomic mass of the element X=16.2 u (x xx16)/(100)+((
The average atomic mass is the weighted average of all of the naturally occurring each element. A. 正确 B. 错误 如何将EXCEL生成题库手机刷题 > 下载刷刷题APP,拍照搜索答疑 > 手机使用 分享 反馈 收藏 举报 参考答案: B 复制 纠错 举一反三 ( )是指经建设主管理部门或者其他部门安全生产考核...
1The atomic mass of copper is 63.55 amu.There are onlytwo isotopes of copper,63Cu with a mass of 62.93 amu and65Cu with a mass of 64.93 amu.What is the percentageabundance of each of these two isotopes? 2【题目】T he atomic mass of copper is 63.55 amu.T here are onlytwo isotopes...
long-range crystallographic disorder-to-order transition in the spinel phase with increasing Li amount. The atomic pair distribution function (PDF) technique was used to reveal directly the interatomic distances of the compounds in real space. As shown in Fig.1b, TM atoms on both, tetrahedral ...