Answer
Iodine is a non-metal and member of G-VIIA of the periodic table. Elemental Iodine has an atomic weight of 127 and Iodine-125 is a radioactive isotope of Iodine. Both isotopes have their applications in medicine.
Applications of Elemental Iodine:
It is mixed with table salt to address Iodine deficiency
It is also used as disinfectant
Applications of Iodine-125 are as follows:
It is used as a tracer for thyroid imaging
It is used in treatment of some types of cancers.
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