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Nuclear Chemistry and Radioactivity — Chemistry STD 11 Science — Question

Maharashtra BoardEnglish MediumSTD 11 ScienceChemistryNuclear Chemistry and Radioactivity2 Marks
Question
Why short-lived isotopes are used for diagnostic purposes?
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Answer

For diagnostic purpose, short-lived isotopes are used in order to limit the exposure time to radiation. Note: Diagnostic Radioisotopes are listed below:
IsotopeHalf-lifeEmitted particlesUses
i.${ }_{24}^{51} Cr$Chromium-5128 daysGammaSpleen imaging
ii.${ }_{26}^{59} Fe$Iron-5945 daysBeta, gammaBone marrow function

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