222Rn has a half-life of 3.82 days. If a sample contains 36.2 mg of 222Rn, what mass of the isotope will remain The radioactive isotope after 4.81 days? mg

Q: 2. A sample of iodine-126 with an original mass of 15.00 mg loses 13.125 mg of the original mass of…

A: When the quantity is reduced to one-half of the original of a radioactive sample, then the time…

Q: If the amount of a radioactive element decreases from 2.4 g to 0.30 g in 12 days, what is its…

A: Given: Initial amount of radioactive element, N∘=2.4gFinal amount of radioactive element, N =…

Q: 25. Iodine-131 is a radioactive substance that can be used to treat certain thyroid conditions. It…

A: Q25) Given that: Half life = 8 days Mass of Iodine = 40 mg Remain after 4 half lives = ?

Q: [Refere A 1.14 g sample of a radioactive isotope decays to 0.87 g in 36.3 hr. What is the half-life…

A: Given  Initial Amount [ A ]0   = 1.15 gram  Remaining Amount [ A ]    = 0.87 gram  Time ( t ) = 36.3…

Q: Gallium-67 is used medically in tumor-seeking agents. The half-life of gallium-67 is 78.2 hours. If…

A: ★ Answer : 13.712 mg of Gallium-67 remains after 112 hours. ★ Solution :

Q: half-life of this isotope?

A: The half –life of Bismuth-218 isotope

Q: Gallium-67 is used medically in tumor-seeking agents. The half-life of gallium-67 is 78.2 hours. If…

A:

Q: The half life of Radium-226 is 1590 years. If a sample contains 500 mg, how many mg will remain…

A: given :-  initial amount of sample = 500 mg  half life = 1590 years  To calculate :-  amount of…

Q: 231y The isotope 23 Pa undergoes a series of a and 8 decays, ending up as 20 Pb. Overall during this…

A:

Q: A scientist obtains 64 grams of a radioactive isotope.  The isotope has a half-life of 3.2 days.…

A:

Q: 2) If 20.0 g of a radioactive isotope are present at 1:00 PM and 5.0 g remain at 2:00 PM, what is…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Iodine-131 has half life of 9 days meaning that after every 9 days the amount of isotope is reduced…

A: The half-life of Iodine-131 is 9 days. Initial amount =10.0 g  Time = 18 days. 18 days means => 9…

Q: Yttrium-90 is a radioactive isotope used to treat tumors in the liver. 90 Y has a half-life of 2.67…

A: Given : Half life of 90Y = 2.67 days. And mass of 90Y remaining after 1.03 days = 4.02 µg

Q: Iodine-131 has a half-life of 8.04 days. If you begin with 2.7 mg of radioactive "I what mass…

A: Half-Life: The half-life of a radio active material will tell us the time it takes for one-half of…

Q: A radioactive substance has a ​half-life of 437 years. What is its decay​ rate?

A: Radioactive Decay: Radioactive decay is the property of the several naturally occurring elements as…

Q: A sample of iodine-126 with an original mass of 15.00 mg loses 13.125 mg of the original mass of the…

A:

Q: Radioactive radon-222, found in many homes, is a potential health hazard. The half-life of radon-222…

A:

Q: The half-life of a radioactive isotope is 12.8 seconds. Starting with 0.960 g of this isotope, how…

A:

Q: Radioactive isotopes can be used to calculate the age of materials because their decay rates are A…

A: Interpretation - To tell about radioactive isotope can be used to calculate the age of materials…

Q: 1. If the amount of the parent isotope in the original sample of a rock had been 48 grams, about how…

A:

Q: 214Bi is a radioactive isotope of the element bismuth with a half-life of 19.7 minutes. What…

A: Welcome to bartleby !  Introduction :  We have to calculate percentage of bismuth lost . Given :…

Q: Part 1.1. If a radioactive element has a half-life of 2.5 million years, the amount of parent…

A:

Q: A moon rock collected by a U.S. Apollo mission is estimated to be 3.70 billion years old by…

A:

Q: The radioisotope potassium-40 decays to argon-40 by positron emission with a half-life of 1.3 × 109…

A:

Q: A laboratory investigation shows that a sample of uranium ore contains 5.37 mg of 238/92 U and 2.52…

A:

Q: isotope with a half-life of about 22 minutes. How much time will it take for a sample of Fr-223 to…

A: Radioactivity follows first order kinetics,  Half life time (t1/2) = 22 minutes  k = 0.693/t1/2 =…

Q: 2P is a radioactive isotope with a half-life of 14.3 days. If you currently have 13.5 g of ²P, how…

A: The given data contains, t1/2 =14.3 daysPt=13.5 gP0=7 days

Q: After 60 days, 10 grams of radioactive isotope remains from an original 80 g sample. What is the…

A: Law of radioactive decay: Law of radioactive decay relates the amount radioactive substance…

Q: Gallium-67 is used medically in tumor-seeking agents. The half-life of gallium-67 is 78.2 hours. If…

A: Gallium - 67 has a half-life of 78.2 hours. Initially 36.7 mg of Gallium - 67 were present.   Here,…

Q: 32p is a radioactive isotope with a half-life of 14.3 days. If you currently have 32.7 g of 32P, how…

A:

Q: A chemist wishing to do an experiment requiring 4" Cat (half-life = 4.5 days) needs 9.0 µg of the…

A: Given :                          Half life = 4.5 dayes  Current quantity ( N) = 9.0μg…

Q: The free neutron is an unstable particle that decays into a proton. What other particle or particles…

A: Radioactivity is a process in which unstable atomic nuclei spontaneously disintegrate into atomic…

Q: 32P is a radioactive isotope with a half-life of 14.3 days. If you currently have 77.1 g of ³2P, how…

A:

Q: 239Pu is a nuclear waste byproduct with a half-life of 24,000 y. What fraction of the 239Pu present…

A: Given data, t1/2 of P239u = 24,000 yTime (t) = 1000 years To calculate the fraction of the 239Pu…

Q: The radioactive isotope Ga decays by electron capture. If the mass of a sample of gallium-67 decays…

A: According to the integrated rate law for the first-order reaction, the concentration of reactant is…

Q: A certain isotope decays by beta-decay with half-life of 24.11 days. One of the products is…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Radioactive radon-222, found in many homes, is a potential health hazard. The half-life of radon-222…

A: The half life of radon = 3.82 days. Initial amount = 37.9 mg  time = 4.70 days mass remains after…

Q: Technetium-99 which has a half life of 6 hours is a useful isotope in diagnostic tests. If a patient…

A:

Q: A chemist wishing to do an experiment requiring 4' Cat (half-life = 4.5 days) needs 5.0 µg of the…

A: Given :  Half life (t1/2) = 4.5 days  Mass of 47Ca+2 required = 5.0 ug  Time for delivery = 96 hour…

Q: 32P is a radioactive isotope with a half-life of 14.3 days. If you currently have 48.9 g of "P, how…

A:

Q: The half-life of 98AU is 2.7 days. If you begin with 5.6 mg of this gold isotope, what mass remains…

A: Half-life is the time required for the reaction to be half completed. It is denoted by t1/2 . For a…

Q: The radioactive isotope *Pa decays by beta emission. 234 If the mass of a sample of protactinium-234…

A: Initial mass of isotope M = 83.5 ug Final mass of isotope M' = 20.9 ug  Time of decay t = 13.5 hours…

Q: A radioactive isotope has a half-life of 60.2 days. What fraction of the isotope remains after 418…

A: Provided half life(t1/2) = 60.2 days Provided time(t)=418 days Let initial amount= [A•] Let final…

Q: Technetium-99 which has a half life of 6 hours is a useful isotope in diagnostic tests. If a patient…

A:

Q: 32 P is a radioactive isotope with a half-life of 14.3 days. If you currently have 41.9 g of $2P.…

A: Half-life = t1/2 = 14.3 days  Final amount = a = 41.9 g  Initial amount = a0 = ? g  Time taken = t =…

Q: The 175Pt isotope has a half-life of 2.53 seconds. What percentage of the original quantity of 175Pt…

A: The radio active decay follows first order kinetics. The half life t1/2 and rate constant K of a…

Q: Strontium-90 has a half life of 28 years. If a 5.31 mg sample was stored for 112 years, what mass of…

A: Reaction in which rate is linearly depend upon one reactant is known as first order reaction.

Q: Thallium-201 is used medically to diagnose heart problems. The half-life of thallium- 201 is 72.9…

A: