Question

Which radio active element is used to detect small tumors in the body ​

Answer 1

Answer:

Radioisotopes -- atoms displaying radioactivity -- can be used for both diagnosing and treatingcancer. For diagnosis, radioisotopes that emit gamma rays are used because of their penetrating capability, while for treatment, isotopes emitting alpha particles, beta particles, or similar cytotoxic radiation are needed.

Answer 2

Uses of some radioactive isotopes : -

(1) Arsenic-(74) : used to detect tumours.

(2) Sodium-(24) : for studies of electrolytes within the body.

(3) Iodine-(131) : widely used in treating thyroid cancer and in imaging the thyroid.

(3) Cobalt-(60) : used for external beam radiotheraphy.

I hope it helps!