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...
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...
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?
1 The relative atomic mass of an element is always D A the mass of an atom of the element relative to z 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.
Calculate the relative formula mass (M) of FeSO_{4} Relative atomic masses: O=16; S=32; Fe=56.The relative formula mass (M) is ___ (b) What is the mass of one mole of iron(Ⅱ) sullate? Remember to give the unit. ___ (c...
Landsberg stated that, while this definition is mathematically correct, it contradicts the statistical definition of temperature, which comes from the study of the relative motion of a large number of particles with respect to their center of mass. Therefore, all statistical definitions can not ...
if 3.01x10的23次方 atoms of an elenment weigh 8g,what is the atomic weight of the element.相关知识点: 试题来源: 解析 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 ...
Atomic weight of carbon = 12.011 AMU This example shows how the atomic weight of an element differs from the atomic masses of its isotopes. That's why atomic weight is not the same as atomic mass. Rather, it is more accurate to call itrelative atomic mass. ...
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 ...