Please explain what is carbon 12
Dear student,
Carbon-12 is an isotope of carbon that has 6 protons and 6 neutrons in its nucleus so that its mass n.o is 12.
carbon-12 is chosen as a standard for assigning the atomic masses. So atomic masses of all the elements are assigned with respect to carbon-12.
1 atomic mass unit= 1/12 th of the mass of one carbon-12 atom.
Regards