Natural iron (26 Fe) consists of four stable isotopes: 5.845% 54 Fe (possibly radioactive with half-life > 4.4 × 1020 years), [4] 91.754% 56 Fe, 2.119% 57 Fe and 0.286% 58 Fe. There are 28 known radioisotopes and 8 nuclear isomers, the most stable of which are 60 Fe (half-life 2.6 million years) and 55 Fe (half-life 2.7 years).

List, data and properties of all known isotopes of Iron. All atomic nuclei of the chemical element iron are summarized under iron isotopes; these consist of an atomic nucleus with 26 protons and in the uncharged state of 26 electrons. The difference between the individual iron isotopes lies in the number of neutrons in the nucleus.

Iron isotopes are mainly used in nutritional studies, with Fe-57 and Fe-58 being the two most commonly used Fe isotopes. Studies have included iron-loss by human adolescents, conditions for effective iron absorption, interventions for anemia and genetic iron control.

Naturally occurring Iron (Fe) consists of four isotopes: 5.845% of radioactive 54 Fe (half-life: >3.1×10 22 years), 91.754% of stable 56 Fe, 2.119% of stable 57 Fe and 0.282% of stable 58 Fe. 60 Fe is an extinct radionuclide of long half-life (1.5 million years).

Iron has four naturally-occurring stable isotopes, 54 Fe, 56 Fe, 57 Fe and 58 Fe. The relative abundances of the Fe isotopes in nature are approximately 54 Fe (5.8%), 56 Fe (91.7%), 57 Fe (2.2%) and 58 Fe (0.3%). 60 Fe is an extinct radionuclide which had a long half-life (1.5 Myr).

Iron has four naturally occurring stable isotopes: 54 Fe, 56 Fe, 57 Fe, and 58 Fe of respective abundances 5.80%, 91.72%, 2.20%, and 0.28%. They are increasingly used to determine the source of the iron present in geological or biological materials and/or to characterize the chemical reactions that may have lead to the form of iron under study.

2022年7月26日 · Iron has four naturally occurring stable isotopes: 54 Fe, 56 Fe, 57 Fe, and 58 Fe of respective abundances 5.80%, 91.72%, 2.20%, and 0.28%. They are increasingly used to determine the source of the iron present in geological or biological materials and/or to characterize the chemical reactions that may have led to the form of iron under study.

2018年1月1日 · Iron has four naturally occurring isotopes, with 56 Fe (91.754%) and 54 Fe (5.845%) being the most abundant and 57 Fe (2.119%) and 58 Fe (0.282%) being relatively rare.

Isotopes of Iron. Naturally occurring iron consists of four isotopes: 5.85 percent of slightly radioactive 54Fe (half-life >3.1×1022 years), 91.75 percent of stable 56Fe, 2.12 percent of stable 57Fe, and 0.28 percent of stable 58Fe.

2017年8月23日 · Most common isotopes: Iron-56 (natural abundance: 91.754 percent) (Image credit: Greg Robson/Creative Commons, Andrei Marincas Shutterstock ) History and properties of iron