szén13

Szén13 refers to the isotope of carbon with a mass number of 13. Its atomic nucleus contains 6 protons and 7 neutrons. Carbon-13, often symbolized as $^{13}$C, is a stable isotope of carbon, meaning it does not undergo radioactive decay. It is naturally occurring and makes up approximately 1.1% of all naturally occurring carbon on Earth. The more abundant isotope is carbon-12 ($^{12}$C), which has 6 protons and 6 neutrons.

The difference in neutron number between $^{13}$C and $^{12}$C leads to slight differences in their physical and chemical properties. These subtle differences are exploited in various scientific applications. For instance, $^{13}$C is used as a tracer in metabolic studies and in environmental research to track the origin and movement of carbon compounds. Its presence can also be detected through techniques like mass spectrometry and nuclear magnetic resonance (NMR) spectroscopy.

In organic chemistry and biochemistry, the enrichment of molecules with $^{13}$C is a common practice to study reaction mechanisms and metabolic pathways. The natural abundance of $^{13}$C allows for the observation of its NMR signal, providing valuable structural information about molecules. Despite its lower natural abundance compared to $^{12}$C, $^{13}$C plays a significant role in scientific analysis and understanding of carbon-based systems.