Grade 11Physical Chemistry
Why is C-12 taken as a standard for calculating atomic masses?
Why is C-12 taken as a standard for calculating atomic masses?
1 Answer
Arun
Instead of using either Hydrogen, or Oxygen as the standard, the isotope of Carbonwith 6 protons and 6 neutrons in its nucleus (Carbon-12) was given a mass of exactly 12. ... So the Atomic Mass of Carbon-12 is defined to be 12 exactly and all other atomic, molecular and formula masses are referred to this standard.
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