What Is the Assigned Atomic Mass of Carbon-12?

Answer

Carbon -12 means that the atom has six protons and six neutrons. The atomic mass of carbon -12 is assigned, 12 atomic mass unit or simply 12amu. The relative mass of the carbon -12 was assigned exactly 12 units.
Q&A Related to "What Is the Assigned Atomic Mass of Carbon-12"
Carbon has 6 protons. With carbon-12 (the most common isotope) there are 6 protons + 6 neutrons, which gives the atomic mass of 12.
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Because, by convention, chemists have set it to be exactly 12 and relate the mass of every other isotope of every other element to that one. If chemists had decided to use hydrogen
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The atomic mass is the mass of a specific isotope of
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In my lifetime, oxygen 16 was once the standard. It was changed to carbon 12 because more elements come out even that way. I guess we could go to a 'gold standard' More elements
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