Of these two isotopes, Carbon 12 is most abundant. Carbon 12 comes with the same number of protons and neutrons, whereas Carbon 14 has different proton and neutron numbers. Carbon 12 has six protons and six neutrons and Carbon 14 has 6 protons and eight neutrons.
Thereof, why is carbon 12 the most abundant?
Carbon–12. Carbon–12 (12C) is the more abundant of the two stable isotopes of carbon (carbon-13 being the other), amounting to 98.93% of the element carbon; its abundance is due to the triple-alpha process by which it is created in stars.
Subsequently, question is, how abundant is carbon 14? The abundance of 14C varies from 0.0000000001% (one part per trillion, a small, but measurable, level) down to zero. The highest abundances of 14C are found in atmospheric carbon dioxide and in products made from atmospheric carbon dioxide (for example, plants).
Also know, why is carbon 14 heavier than carbon 12?
Although neutrons do not carry an electrical charge, they have a mass comparable to that of protons, so different isotopes have different atomic weight. Carbon–12 is lighter than carbon–14.
Which isotope of carbon is more abundant?