because they are the sameAdded: Atomic mass is the quantitive propertie of the mass of an atom, the atomic mass unit is the (standard) UNIT by which it is measured: 1 a.m.u. = 1.66*10-27 kg
Atomic mass is the measure of a mass of one atom in relation to 1/12 mass of Carbon 12 atom and measured in atomic mass unit(amu) or Dalton unit or grams/mol. Relative atomic mass is also the...
Atomic mass unit is the number on the bottom of the Chemical. However, the atomic mass is the number on the top of the chemical minus the number on the bottom. b.t.w The no. of neutrons = top no....