Questions LLC
Login
or
Sign Up
Ask a New Question
Science
Chemistry
Technetium-99 has been used as a radio graphic agent in bone scans. If the isotope has a half life of 6.0 hours, what amount is left of 10.0 mg after 2 days?
1 answer
2 days (48 hr) is 8 half-lives
10.0 * (1/2)^8
You can
ask a new question
or
answer this question
.
Related Questions
In the reaction
2HNO3(aq) + Cu(s) + 2H+(aq) �¨ 2NO2(g) + Cu2+(g) + 2H2O(l) Which of the following statements is correct?
A patient receives 3.0 mL of a solution containing technetium-99m for a breast image. If the activity of the technetium-99m is
The femur is a bone in the leg whose minium cross-sectional area is about 3.60 E-4 m2. A compressional force in excess of 6.90
The femur is a bone in the leg whose minimum cross-sectional area is about 3.60 10-4 m2. A compressional force in excess of 6.90
What information is needed to calculate the average atomic mass of an element?
A. The relative abundance of its isotope** B. The
In the reaction
2HNO3(aq) + Cu(s) + 2H+(aq) �¨ 2NO2(g) + Cu2+(g) + 2H2O(l) Which of the following statements is correct? A.HNO3
Technetium-99m is a radioactive isotope commonly used in medicine as a radioactive tracer. A radioactive tracer is an isotope
A rare isotope of a nuclear material is very unstable, decaying at a rate of 13% each second. Find how much isotope
Technetium-99m, an important radionuclide in medicine, has a half-life of 6.0 hours. What percentage of a sample of
Which of the following statements correctly explains the relationship between FM and AM radio waves?
A. FM radio waves carry less