Multiple Choice
Phosphorus-32, a beta emitter, is a radioactive isotope used in many biomedical applications.How much time has passed if the ratio of 32S/ 32P is 4/5? (The half-life of phosphorus-32 is 14.3 days.)
A) 11.4 days
B) 16.7 days
C) 4.60 days
D) 12.1 days
E) 16.9 days
Correct Answer:
Verified
Correct Answer:
Verified
Q41: Selenium can substitute for sulfur in the
Q55: The boiling points of group IVA
Q71: Condensation reactions, which eliminate water as a
Q73: ATP-sulfurylase promotes the incorporation of sulfate into
Q75: Enzymes in plants convert nitrate into
Q77: Which of the following is NOT one
Q78: Radioactive 90Sr can substitute for _ in
Q79: Different concentrations of ions on either
Q80: Define what is meant by essential element.
Q81: The first ionization energies of phosphorus and