Gallium 67 (67Ga) is a radioactive isotope with a half-life of 3.26 days. It’s used in...
Gallium 67 (67Ga) is a radioactive isotope with a half-life of 3.26 days. It’s used in nuclear medicine to locate inflammations and tumors. Accumulations of 67Ga in a patient’s tissue can be detected by looking for the gamma rays it emits when it decays. A radiologist usually begins looking for the 67Ga about 52 hours after administering it to a patient. What fraction of the original 67Ga nuclei remains after 52 hours?
**Please solve using half life equation formula, you have to make all the units the same, convert years to hours. Answer should be in decimal form!!
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Gallium 67 (67Ga) is a radioactive isotope with a half-life of
3.26 days. It’s used in...
Gallium 67 (67Ga) is a radioactive isotope with a half-life of 3.26 days. It's used in...
Gallium 67 (67Ga) is a radioactive isotope with a half-life of 3.26 days. It's used in nuclear medicine to locate inflammations and tumors. Accumulations of 67 Ga in a patient's tissue can be detected by looking for the gamma rays it emits when it decays. 3 days after 67Ga was administered to the patient, what fraction of the 67Ga nuclei remains?
consider the transition metal gallium. The gallium-67 isotope (67Ga) is a radioactive element often used in...
consider the transition metal gallium. The gallium-67 isotope (67Ga) is a radioactive element often used in hospitals to image inflammation and chronic infections via a technique called a gallium scan. 67Ga has a half-life equal to 3.3 days and decays to 67Zn via a process called electron capture, which follows first order kinetics. How long will it take for the amount of 67Ga in your sample to drop to 6.25%? a. 3.3 days b. 9.9 days c. 13.2 days d....
All radioactive decay processes follow first-order kinetics. The half-life of a gamma producing radioactive isotope is...
All radioactive decay processes follow first-order kinetics. The half-life of a gamma producing radioactive isotope is 2.4 hours. This isotope is used in a medical scan and enough of the isotope is given such that a heart scan can be done? If 0.75 ng of the isotope is administered, how ng of the isotope remains in the patient after 3.5 days?
Gallium citrate, which contains the radioactive nuclide Ga, is used in medicine as a tumor-seeking agent....
Gallium citrate, which contains the radioactive nuclide Ga, is used in medicine as a tumor-seeking agent. Ga decays with a half-life of 78.3 hours. How much time is required for it to decay to 4.44% of its initial activity?
An isotope of gallium, 67Ga, has an atomic number of 31 and a half-life of 78...
An isotope of gallium, 67Ga, has an atomic number of 31 and a half-life of 78 hours. Consider a small mass of 3.9 grams for 67Ga which is initially pure. 1) Initially, what is the half-life of the gallium? T1/2o = 2) Initially, what is the initial decay constant of the Ga atom in the sample? λo = 3) Initially, what is the decay rate of the gallium? Ro = 4) What is the half-life of the gallium after 24...
A radioactive isotope decays by B" emission with a half-life of 1.0 min. During the first...
A radioactive isotope decays by B" emission with a half-life of 1.0 min. During the first 1.0 min, a particular sample emits 1000 B particles. During the next 1.0 min, the number of B- particles this sample will emit will be closest to 250. 500. O 1000. 1500. 2000.
Yttrium-90 is a radioactive isotope used to treat tumors in the liver. Y90 has a half-life...
Yttrium-90 is a radioactive isotope used to treat tumors in the liver. Y90 has a half-life of 2.67 days. If a patient has 3.92 ?g of Y90 in her body 1.35 days after treatment, what mass of Y90 was used in her dose? Assume that none of the yttrium was passed normally out of her body.
A Radioactive sample contains 2.1g of an isotope with a half- life of 3.8 days. How...
A Radioactive sample contains 2.1g of an isotope with a half- life of 3.8 days. How much of the isotope in grams will remain after 10.0 days? Express the answer to 3 significant figures.
Carbon 14, (14^, 6 C ) is a radioactive isotope of carbon that has a half-life...
Carbon 14, (14^, 6 C ) is a radioactive isotope of carbon that has a half-life of 5,730 years. If an initial sample contained 1,000 14C nuclei, how many would still be around after 22,920 years?
Q#2: What is the half-life of technetium-99m in minutes? Hours? Technetium (chemical symbol Tc) is a...
Q#2: What is the half-life of technetium-99m in minutes?
Hours?
Technetium (chemical symbol Tc) is a silver-gray, radioactive metal. It occurs naturally in very small amounts in the earth's crust, but is primarily man- made. Technetium-99 is produced during nuclear reactor operation, and is a byproduct of nuclear weapons explosions. Technetium-99 can be found as a component of nuclear waste. Technetium-99m is a short-lived form of Tc-99 that is used as a medical diagnostic tool. As this isotope decays, it...
Gallium 67 (67Ga) is a radioactive isotope with a half-life of 3.26 days. It's used in nuclear medicine to locate inflammations and tumors. Accumulations of 67 Ga in a patient's tissue can be detected by looking for the gamma rays it emits when it decays. 3 days after 67Ga was administered to the patient, what fraction of the 67Ga nuclei remains?
Gallium citrate, which contains the radioactive nuclide Ga, is used in medicine as a tumor-seeking agent. Ga decays with a half-life of 78.3 hours. How much time is required for it to decay to 4.44% of its initial activity?
A radioactive isotope decays by B" emission with a half-life of 1.0 min. During the first 1.0 min, a particular sample emits 1000 B particles. During the next 1.0 min, the number of B- particles this sample will emit will be closest to 250. 500. O 1000. 1500. 2000.
Q#2: What is the half-life of technetium-99m in minutes?
Hours?
Technetium (chemical symbol Tc) is a silver-gray, radioactive metal. It occurs naturally in very small amounts in the earth's crust, but is primarily man- made. Technetium-99 is produced during nuclear reactor operation, and is a byproduct of nuclear weapons explosions. Technetium-99 can be found as a component of nuclear waste. Technetium-99m is a short-lived form of Tc-99 that is used as a medical diagnostic tool. As this isotope decays, it...
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