Which of the following emits gamma radiations only?
Strontium 89
Technetium 99m
Phosphorus 32
Tin 117m
Radionuclides react with hydroxyapatite and the pattern of uptake is seen on the bone scan. Strontium-89, Samarium-153, Phosphorus -32, Rhenium-186, Tin -117m emit beta particles with a mean range between 0.2 to 3 mm, minimising toxicity to the surrounding tissues.
Technetium 99m emits gamma radiations and is used as a diagnostic tool in medical sciences.