Assertion : One atomic mass unit is defined as one twelfth of the mass of one carbon-12 atom.\ Reas

Question

Assertion : One atomic mass unit is defined as one twelfth of the mass of one carbon-12 atom.\ Reason : Carbon-12 isotope is the most abundant isotope of carbon and has been chosen as standard.\

Professor PC Thomas Classes · Answer

(b) : Choosing C-12 as the standard, the relative masses of atoms come out to be close to whole number values and ambiguity of oxygen as reference was solved.