17: A sample of U-235 started with 120 grams.  If the half-life of U-235 has a half-life of 704,000,000 years how much would be left after a time period of 3.52 Billion years?    Group of answer choices A:5.26 g B:12.4 g C:8.94 g D:3.75 g E:15.8 g

Q: The activity of a particular radioactive nuclide falls from 1 × 1011 Bq to 2 × 1010 Bq in 10 hours.…

A: Calculate the decay constant of the radioactive nuclei. A=A0e-λt2×1010 Bq=1×1011 Bq×e-λ×10 he-λ×10…

Q: Uranium-238 (U-238) has a​ half-life of 4.5 billion years. Geologists find a rock containing a…

A:

Q: The half-life for the decay of carbon-14 is 5.73*10^3 years. Suppose the activity due to the…

A: Activity of sample of fresh wood A0=69 BqActivity of sample of wood At=65 BqHalf life t1/2=  years

Q: 1. If a material has a half-life of 92.5 days, how long will it take for 40% of the material to…

A:

Q: One useful radioisotope useful for dating the age of certain archaeological items is Carbon-14.…

A: Given :            t12= 5730  years              t= 17190 years          No. of half lives =…

Q: Madame Curie filled glass vials with pure radon, produced by her radium, for use in hospitals. Radon…

A: Let us analyse the question in step 2.

Q: In the fall of 2002, a group of scientists at Los Alamos National Laboratory determined that the…

A: Given data The critical mass of the neptunium-237 is m = 60 kg The density of the element is ρ =…

Q: If a material has a half life of 92.5 days, how long will it take for 75% of the material to decay?…

A: Half life of the material=92.5days 75% of the material decay

Q: The corresponding graph shows a group of points (a, b, c, d), which represent the number of original…

A:

Q: The deuteron binding energy may be best expressed as Group of answer choices mn + mp - md where the…

A: We need to calculate the binding energy of deuteron nucleus.

Q: Uranium-235 has a half-life of 7x10^8 years. An initially pure sample with mass 10 kg is created in…

A: Given data, Half-life t12=7×108 years Initial mass m0=10 kg

Q: At the beginning of an experiment, a scientist has 336 grams of radioactive goo. After 60 minutes,…

A: Given data: The initial mass of the radioactive goo is, M0 = 336 gram The final mass of the…

Q: A radioactive material has a half life of 4.6 minutes.  After 8.1 minutes, which percentage of the…

A:

Q: Radon gas has a half-life of 3.83 days. If 3.06 g of radon gas is present at time t = 0, what mass…

A: Given value--- Half life time = 3.83 days . N0 = 3.06 g. We need to find--- what mass of radon…

Q: 4. A radioactive sample, with an initial mass of 28 mg, has a half - life of 5 days. What is the…

A:

Q: What is "half-life"? Select one: a. The time needed for half of the radioactive atoms in a sample to…

A: Half-life is the duration of time needed for decay of the half of the radioactive atoms in a given…

Q: 1. The half-life of cobalt-60 is 5.3 years. If 4.0g of cobalt-60 are allowed to decay for 21.2…

A: Given Half life t12 = 5.3 years, Initial amount N0 = 4 gram 1(a)  now from formula         N =…

Q: 4. Because of its chemical similarity to calcium, 3 Sr can collect in the bones and present a health…

A: Solution:Given:t = duration of time = 47.6 yearsT = half life of 90Sr38 = 28.8 yearsp2 = percentage…

Q: If a 10-gram sample of a radioactive substance has a half-life of 6000 years, how much would be…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: The half life for the decay of carbon-14 is 5.73*10^3 years. Suppose the activity due to the…

A: Half life of the carbon-14 Activity of the fresh wood Activity of the decayed wood

Q: Q4. A. Use the graph as shown below. Determine the half-life of Plutonium-239. Undecayed particles…

A: Given  At , t = 0  Amount of Plutonium-239  &  Carbon -14 are      100℅  .  (A) from given graph…

Q: The advertising for a new genetic screening of fetuses, through sampling the mother's blood, claims…

A: Accuracy of a lab result (P)= 99.9% Number of tests done in a year = 4 million

Q: Part a. Approximately how much mass remains after 8.0 hours? Part b. Approximately how much mass…

A: In nuclear physics, the half-life refers to the time it takes for half of the…

Q: The half-life of l-137 is 8.07 days. If 25 grams are left after 40.35 days, how many grams were in…

A: The formula of the radioactivity is  where, N is the amount left, No is the initial amount, t is…

Q: Elemental carbon has 6 protons and 6 neutrons. This is often described as carbon-12. Carbon-13 has 6…

A: Mass Number = Number of protons + Number of neutrons For Plutonium: Mass Number = 244 Number of…

Q: d) Below is a decay curve for iodine-131. This is used in the treatment of thyroid cancer.…

A:

Q: 5. Krypton-85 is an inert radioactive noble gas with a half-life of approximately 10.76 years. a.…

A:

Q: Sheldon works in a laboratory that uses radioactive substances. The laboratory received a shipment…

A: Given data: Initial quantity of substance (N0) = 200 g Remaining quality of substance N(t) = 12.5 g…

Q: on gas has a half-life of 3.83 days. If 2.92 g of radon gas is present at time t = 0, what mass of…

A:

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.