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 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.

Studies of iron isotopes are important for understanding Earth system chemical and biologic processes. Fe isotope ratios are expressed either in δ or in ε notation using mainly the certified isotopic RM IRMM-014 for normalization.

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.

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).

Isotopes. Atoms of the same element with different numbers of neutrons. Key for isotopes

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