The element carbon (C) has two common isotopes. 98.89% of ca…
The element carbon (C) has two common isotopes. 98.89% of carbon atoms have 6 neutrons and 6 protons, while 1.11% of carbon atoms have 7 neutrons and 6 protons. Based on this information, what is the average atomic mass of carbon? Round your answer to the tenths place.
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