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Additional
carbon-12
English Wikipedia - The Free Encyclopedia
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Carbon-12
Carbon-12
is the more abundant
carbon
of the two
stable
isotopes
, amounting to 98.93% of the
element
carbon
; its abundance is due to the
triple-alpha process
by which it is created in stars. Carbon-12 is of particular importance in its use as the standard from which
atomic masses
of all
nuclides
are measured: its
mass number
is 12 by definition and contains 6
protons
, 6
neutrons
and 6
electrons
.
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