This table lists the mass and percent natural abundance for the stable nuclides. The mass of the longest lived isotope is given for elements without a stable nuclide.

There are three naturally occurring isotopes of carbon: 12, 13, and 14. 12C and 13C are stable, occurring in a natural proportion of approximately 93:1. 14C is produced by thermal neutrons …

This table shows information about naturally occuring isotopes, their atomic masses, their natural abundances, their nuclear spins, and their magnetic moments. Further data for radioisotopes …

For example, carbon has two stable isotopes: carbon-12 (with 6 neutrons) and carbon-13 (with 7 neutrons). The natural abundance of these isotopes tells us how much of each isotope is …

There is also a stable isotope of carbon, 13 C. This isotope is important in that it allows us to correct for carbon isotope fractionation in nature and during analytical procedures. Abundance …

Since the carbon-12 isotope is more abundant, its mass is weighted more in the calculation of carbon’s atomic mass. The calculation of the atomic mass is shown below. Directions: Use the …

The major isotope of carbon has an atomic mass of 12.00000 amu and is present in nature as 98.89% of the carbon. The only other stable isotope has atomic mass of 13.00335 amu and is …

List, data and properties of all known isotopes of Carbon. 15 isotopes of the element carbon are known - 2 of which are stable (12 C, 13 C), the others occur as unstable natural decomposition …

The isotopic abundance describes the relative number of atoms of a given isotope in a mixture of isotopes of a given chemical element, expressed as a fraction of all the atoms of that element …

2011年5月1日 · Elemental carbon consisted of three natural isotopes (12 C, 13 C, 14 C), and twelve human-made isotopes (8 C – 22 C). Among various carbon isotopes, 11 C, 13 C, and …