HL Paper 3
Nuclear medicine uses small amounts of radioisotopes to diagnose and treat some diseases.
State two common side effects of radiotherapy.
[1]
a.
Explain why technetium-99m is the most common radioisotope used in nuclear medicine.
[2]
b.
25.0 μg of iodine-131, with a half-life of 8.00 days, was left to decay.
Calculate the mass of iodine-131, in μg, remaining after 32.0 days. Use section 1 of the data booklet.
[2]
c.