The half-life of bismuth-214 is 20.0 minutes. If a customer requests 2.50 g of bismuth-214 from a chemical company, how many grams of bismuth must be shipped? The shipping time is 3.0 hours.

Q: If the amount of a radioactive element decreases from 0.36 g to 90. mg in 22 min, what is its…

A: Half-life (t1/2) is defined as the time required by a substance to reduce to half of its initial…

Q: If you accidentally spill phosphorus-32 onto your shoe, how long would it take before 99.9% of the…

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Q: Thorium-234 has a half-life of 24.1 days. Suppose the initial amount of Thorium-234 is 162.9 mg,…

A: All natural and artificial radioactive decays follows first order kinetics The integrated rate…

Q: The half-life of cesium-129 is 32.0 hours. How much time is required for the activity of a sample of…

A: Radioactive decay follows the first-order kinetics. The decay constant (λ) and half-life of a…

Q: If 10 mg of iodine 131 is given to a patient, how much is left after 24 days? The half-life of…

A: Given : Half life of I-131 = 8 days Initial amount of I-131 = 10 mg And time passed = 24 days

Q: A 739.7 ng sample of an unknown radioactive substance was placed in storage and its mass measured…

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Q: Radium-226 is radioactive and has a half life of 1600. years. How long would it take a sample to…

A:

Q: 4. Iron-59, which is used to diagnose anemia, has a half-life of 45 days. What fraction of it is…

A: we know that,→ Radioactivity phenomena follow first owen                            knnetics.so,…

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: 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: If you start with 71.0 grams of a radioactive substance with a half life of 3 days, how much will be…

A: Here given, Initial amount (N0) = 71 grams Half life (t1/2) = 3 days Time (t) = 15 days Amount left…

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

A: The spontaneous breakdown of the nucleus causes the release of energy and matter from the nucleus,…

Q: Cobalt-60 has a half-life of 5.27 years and is used in cancer treatment. If a patient ingests 20.0 g…

A: Since the decay reactions are first order reactions hence the relationship between the time and mass…

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

A:

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

A:

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

A: We have to predict the time taken.

Q: If the half-life of a radioactive substance is 500 million years and you have 48 atoms of it, how…

A:

Q: Iodine-125 has a half-life of 60.4 days and is used in radiation therapy to treat prostate cancer…

A: Since the decay reactions are first order reactions Hence we can say  1) Half life = ln(2) / K 2)…

Q: 1. Iron-59, which is used to diagnose anemia, has a half-life of 45 days. What fraction of it is…

A: As in the question, it is given that Iron-59 is used to diagnose anaemia and has a half-life of 45…

Q: If you are given a sample of 14 g of a radioactive substance and waited for 4 half-lives to pass,…

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Q: Technetium-99 (half-life = 6.0 h) is used in medical imaging. How many half-lives would go by in 18…

A: technetium - 99 have half life = 6 hours

Q: Potassium 40 has a half life of 1.3 billion years.  If no half lives had passed, what percentage of…

A: A numerical problem based on half life period, which is to be accomplished.

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

A:

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: The half life of bismuth-213 is 46 minutes.  How much of a 20 g sample of bismuth-213 is left after…

A: The unstable nucleus or isotope undergoes radioactive decay to form a stable nucleus. This process…

Q: The half–life of a radioactive material is 7.04 days. Assuming you start with a 1.45 mg sample, how…

A: Given , Half life = 7.04 days Time , t = 16 days Initial Weight of sample = 1.45 mg

Q: 1. If gallium - 68 has a half-life of 68.3 minutes, how much of a 160.0 mg sample is left after 1…

A: One half life is that time in which half of the radioactive substance gets decayed.

Q: Lead-204 has a half-life of 15 minutes. Suppose there are initially 100 Pb-204 atoms. After 30…

A: The time in which half of the initial amount of the reactants convert into the product known as half…

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

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Q: A 169 ng sample of radioactive material has a half life of 3.9 days. How many ng of radioactive…

A: Sample of redioactive material=169ng Half life=3.9days

Q: The half-life of Radium-226 is 1590 years. If a sample contains 300 mg, how many mg will remain…

A: We are given Radium -226 t1/2=1590 years                  (i) We know radioactive decay always…

Q: Technetium-99 (half-life = 6.01 h) is used in medical imaging. How many half-lives would go by in…

A: Given that technetium - 99 have a half life of 6.01 hours

Q: 5) A medical institution requests 1 g of bismuth-214, which has a half life of 20 min. How many…

A: Introduction :  Half-life of a reaction can be defined as the time taken by one reactant to…

Q: How many half-lives does it take a 10.0 gram sample of 12353I to drop to 0.625 grams? What length…

A: The time has to be calculated

Q: Iodine-125 has a half-life of 60.4 days and is used in radiation therapy to treat prostate cancer…

A: Since Iodine will decay as it is radioactive. And since decay reactions are first order reactions…

Q: Iodine-131 has a half-life of 8.0 minutes. How many half-lives will pass in 120 minutes?

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Q: What is the half-life of Californium- 252 based on the graph below?

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

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

Q: Strontium-82 has a half-life of 25.5 days. If you start with 100.0 g on January 1st 2018,…

A: Strontium-82 has a half-life of 25.5 days. If you start with 100.0 g on January 1st 2018, the amount…

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…

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Q: The noble gas radon has been the focus of much attention because it may be found in homes. Radon-222…

A: Write the balanced equation of Rn-222 on alpha decay ?

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

A:

Q: Americium-241 is widely used in smoke detectors. Calculate the amount of americium-241 consumed in a…

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Q: Sr-90 has a half-life of 28.8 years. Beginning with 15.0 of Sr-90, how much will remain after 145…

A: Determination of rate constant, K:

Q: A radioactive iodine sample has a half life of 6 days. If the original sample is 24 grams, how much…

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Q: Americium-241 is widely used in smoke detectors. Calculate the amount of americium-241 consumed in a…

A:

Q: Cobalt-60 is used extensively in medicine as a source of g-rays. Its half-life is 5.27 years. What…

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

A: