What is a common isotope used in Mössbauer spectroscopy?
Carbon-14
Iron-57
Uranium-235
Hydrogen-3
Answer
Iron-57 is a common isotope used in Mössbauer spectroscopy because it has a suitable energy level for gamma ray absorption and emission, and a long half-life of 37 days. This allows for a narrow resonance line, which is essential for Mössbauer spectroscopy. Iron-57 is also abundant in nature, making it readily available for use in experiments.
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