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Fluorine-18, which is often used in PET scans to locate tumors, decays to form a positron and oxygen-18.After 90.0 minutes, 1.00 18O is present relative to every 1.30 18F.Estimate the half-life of F-18.
Q5: Crews of commercial airlines are exposed to
Q30: The reaction, <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6562/.jpg" alt=" The
Q35: Which of the following statements regarding the
Q66: List <span class="ql-formula" data-value="\alpha"><span class="katex"><span
Q77: Which of the following pairs show constitutional
Q86: Cyclic alkanes differ from normal alkanes in<br>A)the
Q87: Cardiac pacemakers once used plutonium-238 as
Q117: Which functional group is NOT present in
Q128: If the unit cell of copper (Cu)
Q138: The monomer for polystyrene is shown below.Which