This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
All of the following are beta emitter particles except: 
Select and explain. 
A. Strontium 89, B. Technetium 99m, C. Phosphorus 32, D. Tin 117m
B: Technetium 99m
Answer: B: Technetium 99m 
Explanation: 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