Chemical Entity Data Page

Carbon 12
  Real, long lived, electronically neutral reagent chemical.

This isotope is defined as having a mass of EXACTLY 12.000000000...

All other atomic and molecular masses are defined with respect to carbon 12.
Wikipedia Page:

Carbon 12
is defined with respect to the entities below:
The entities below are defined with respect to:
Carbon 12
Non-radioactive isotope (generic)

© Mark R. Leach 1999 –

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