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...
The units in which the mass of an atom are expressed are atomic mass units. At one time, the lightest atom was assigned a mass of 1 amu and the mass of any other atom was expressed in terms of this standard. Today atomic mass units are defined in terms of the 12C isotope, which is assigned a mass of exactly 12.000... amu.