Noun
English Wikipedia has an article on:carbon-13Wikipedia
carbon-13 (uncountable)
(physics) the less common of the two stable isotopes of carbon, 6C, having six protons and seven neutrons
Amthor (2003) describes evidence from Oman that indicates the carbon isotope excursion relates to a mass extinction: the disappearance of distinctive fossils from the Precambrian coincides exactly with the carbon-13 anomaly. Source: Internet
Physical and chemical details main In nature, carbon exists as two stable, nonradioactive isotopes : carbon-12 ( mainC ), and carbon-13 ( mainC ), and a radioactive isotope, carbon-14 ( mainC ), also known as "radiocarbon". Source: Internet
Full replacement with heavy atom isotopes can be accomplished in higher organisms with other non-radioactive heavy isotopes (such as carbon-13, nitrogen-15, and oxygen-18), but this cannot be done for the stable heavy isotope of hydrogen. Source: Internet
The isotope carbon-12 ( 12 C) forms 98.93% of the carbon on Earth, while carbon-13 ( 13 C) forms the remaining 1.07%. Source: Internet
The team reported that they had bombarded a curium target with carbon-13 ions for twenty-five hours in half-hour intervals. Source: Internet