Baby names meanings search results: The name Aisling is a baby girl name. The name Aisling comes from the Irish origin. In Irish The meaning of the name Aisling is: Vision.
1 atomic mass unit is eqal to the mass of one-twelth of mass of one atom of carbon atom. one atomic mass unit is exactly equal to one-twelfth the mass of carbon isotope-12. it is taken with reference to atomic mass of one twelfth of carbon isotope 12. One amu (or dalton) is exactly one twelfth of the mass of an atom of the most common form of carbon. 1 amu = 1.0078...
#146#. Interestingly enough, the atomic mass of this isotope is given to you as a whole number. When this happens, you can say that the isotope's atomic mass is equal to its mass number. As you know, an isotope's mass number tells you how many protons and neutrons it contains in its nucleus. The same approach can be applied when the atomic mass is not a whole number. For example, the atomic mass of uranium is actually #238.029 u#, not #238 u#.