Chemistry, 16.10.2019 13:30 larageorge

Iodine-131 is a radioactive isotope that is used as a medical tracer to study and treat the thyroid gland. this radioactive element emits both beta particles and gamma waves. to effectively stop both beta particles and gamma waves, scientists use a chamber composed

a) concrete.
b) lead.
c) metal. (not this one)
d) plastic. (not this one)

i believe the answer is b, can someone confirm?

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