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...
What is the relative atomic mass of sodium? Sodium: On the periodic table of elements, the chemical element sodium is shown by the symbol Na. Sodium has an atomic number of 11, which means it has 11 protons. Key Terms Element: An element is a chemical substance that cannot be broken do...
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 ...
Can the atomic mass of an element vary? What is the difference between a molecular element and an atomic element? What is the relationship between atomic mass and mass number? What is relative atomic mass? Why is atomic number more important than atomic mass?
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.
(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 M...
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...
2 The mass spectrum of a sample of an element is shown below.100relative abundance 50-(%)24 6 8 10 12m/z What is the relative atomic mass of the element? B A 10.5 B 10.8 C 11.0 D 13.3 相关知识点: 试题来源: 解析 B 反馈 收藏 ...
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?
What is the atomic mass of an element? Define the term "relative atomic mass." What is the atomic mass number of carbon-12? Explain what relative weight and why its important to atomic mass? Define atomic number, mass number, and atomic mass. Why is it wrong to state that "the atomic...