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解释...
The relative atomic mass is the average of the masses of all the naturally occurring isotopes for an element. That is why the relative atomic mass is...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
I The relative atomic mass of an element is always D 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 relative...
We don't round it to a whole number because we want the number of the relative atomic mass of cholorine to be as precise as possible. We really care about the significant figures, so it's better if we get more digits.
What is the atomic mass of actinium? What is relative atomic mass? Determine the number of atoms in 20.04 grams of calcium. What is meitnerium's atomic mass? What is the atomic mass number of carbon-13? What is the atomic mass of oxygen 16?
解析 We don't round it to a whole number because we want the number of the relative atomic mass of cholorine to be as precise as possible.We really care about the significant figures,so it's better if we get more digits. 结果一 题目 why is this the relative atomic mass of chlorine ...
What is relative atomic mass? How to calculate atomic mass of isotopes What chemical test could be used to identify limestone? What is the molar mass of Mg(NO3)2? What is a partition coefficient in analytical chemistry? Which unit is used for measuring atomic mass?
(d) Tritium is not usually included in calculations of the relative atomic mass of hydrogen, because it is radioactive and has a relatively short half-life.Calculate the relative atomic mass of hydrogen with the following isotopic composition. Give your answer to four decimal places.(2)Isotope ...
1. Definition of Atomic Mass Unit (amu): - The atomic mass unit (amu) is a standard unit of mass that is used to express the masses of atoms and molecules. 2. Purpose of AMU: - AMU is primarily used to compare the relative masses of different isotopes of elements. Isotopes are varia...
解答一 举报 An atomic weight (relative atomic mass) of an element from a specified source is the ratio of the average mass per atom of the element to 1/12 of the mass of an atom of 12C.and NA=6.02*10^23therefore ... 解析看不懂?免费查看同类题视频解析查看解答 ...