Match the radioactive tracer with its most common use.
2 answers:
Answer:
Estimating the age of formerly living ancient artifacts
Correct F. Carbon-14
Biological tracer used in PET scans
Correct A. Fluorine-18
Cancer treatments
Correct E. Cobalt-60
Most widely used biological tracer used to detect brain tumors and bone and lung ailments
Correct B. Technitium-99
Detection and treatment of thyroid ailments
Correct D. Iodine-131
Fuel in nuclear reactors
Correct G. Uranium-235
Smoke detectors in homes and industry
Correct C. Americium-241
1,g 2b 3c 4a 6e 7f !!!!!!!!!!!!
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Chlorine (CL) would be the answer
If by Period you mean Column, they share the same amount of electrons in their outer shell.
I think it’s I
Iodine has 53 protons and 74 neutrons
We no longer use atoms of the same elements are identical in size, mass and properties.
