HURRRY ASAP!!
An important consideration of the medical use of radioisotopes is how long they're active. Technetium-99 is a short-lived isotope of technetium with a half-life of 6 hours. If a patient is treated with technetium-99 for a PET scan, when will the patient have less than 1 percent of the original technetium-99 present?
A)
3 days
B)
40 hours
C)
6 hours
D)
0.00116 hours
Answers: 1
Chemistry, 22.06.2019 01:00
Which part of a feedback mechanism is able to monitor the conditions outside of cells and usually uses nerve cells to relay this information to an intergrating center
Answers: 2
Chemistry, 22.06.2019 06:00
Ethanol (c2h5oh) is produced from the fermentation of sucrose in the presence of enzymes. c12h22o11(aq) + h2o(g) 4 c2h5oh(l) + 4 co2(g) determine the theoretical yield and the percent yields of ethanol if 680. g sucrose undergoes fermentation and 326.5 g ethanol is obtained. theoretical _ g _ percent %
Answers: 1
Chemistry, 22.06.2019 09:30
Apump contains 0.5 l of air at 203 kpa.you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump
Answers: 2
HURRRY ASAP!!
An important consideration of the medical use of radioisotopes is how long they're ac...
Computers and Technology, 12.01.2021 21:30
History, 12.01.2021 21:30
Arts, 12.01.2021 21:30
Biology, 12.01.2021 21:30
Mathematics, 12.01.2021 21:30
Mathematics, 12.01.2021 21:30
Mathematics, 12.01.2021 21:30
Mathematics, 12.01.2021 21:30
French, 12.01.2021 21:30