The half life of (lodine 131) is eight days. If you had 12 grams of 1311, how long would it take for the 12 grams to decay to 3 grams? O a. 8 days O b.g minutes C. 16 hours Od 16 days

Q: atom 16. Phosphorus- 32 has a half-life of 14.3 days and is used in the treatment of 32/16 leukemia,…

A: Beta particle decay:                               A Beta particle is a high energy electron that…

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: Heavy nuclides with too few neutrons to be in the band of stability are most likely to decay by what…

A: The nuclear reactions are a type of chemical processes which lead to the formation of some new…

Q: Consider a certain type of nucleus that has a half-life of 32 min. Calculate the time required for…

A: The radioactive decay law can be used to determine the time at which 66% nuclei are remining.

Q: How much time in years (assume a 365 day year for each year) would it take for a 1.805 g sample of…

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Q: The half-life of 238U is 4.5 * 109 yr. A sample of rock of mass 1.6 gproduces 29 dis>s. Assuming…

A: The given data contains, mass = 1.6 g. half life=4.5×109 year.

Q: If the half-life of 100.0 grams of a radioactive isotope is 8 years, how many grams will remain in…

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Q: A 1.55 g sample of an isotope has a half-life of 3.8 days. What mass of sample is left after 5.5…

A: given data,sample of an isotope or initial amount of sample =1.55 g sample half life =3.8…

Q: How much time in minutes would it take for a 2.301 g sample of 3H to decay to a mass of 1.789 g if…

A: The initial concentration (N0), final concentration (N), and time (t) required to convert the…

Q: half-life of this isotope?

A: The half –life of Bismuth-218 isotope

Q: 222Rn has a half-life of 3.82 days. If a sample contains 36.2 mg of 222Rn, what mass of the isotope…

A: We have to calculate the amount after 6.81 days.

Q: Selenium-73 decays by positron emission with a half-life of 7.15 hours. What mass remains from a…

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Q: 4. The half-life of bismuth-212 is 1 hour. If 12g of bismuth are allowed to decay, what mass of…

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Q: Plutonium – 236 is an alpha emitter with a half-life of 2.86 years. If a sample initially contains…

A: Given data Half life : t1/2=2.86 year Initial amount : No=2.56 mg time : t=7 year…

Q: A radioactive sample contains 1.55 g of an isotope with a half-life of 3.8 days. What mass of the…

A: The process in which energy is lost by unstable atomic nucleus via radiation is known as radioactive…

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

A:

Q: Half-life of Element X mass How much of the daughter product exists after 2 half-lives? of 60…

A: Answer :-  Amount of daughter element after 2 Half lives = 25%…

Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 4.4 g remain. What is the original…

A: The Answer to the following question is-

Q: Complete the following nuclear fission reaction. *U+}n→3;n +3e + Te + 235 e 189 -1 92

A: Concept  Atomic mass of reactant = Atomic mass of product  Atomic no. Of reactant = Atomic no. Of…

Q: Sample of radioactive element with a mass of 200 g, of which 175 g is decayed within 30 days.…

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Q: lead (214Pb82) decays to bismuth (214Bi83) emitting negative beta particles with a half-life of…

A: answer =  1.1846 x 10-11 curie

Q: A sample of technetium-99m with a mass of 4.61 ng will have decayed to how much of this radionuclide…

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Q: For a radioactive isotope with t1/2 %D 38.7 hr, how many hours will it take for a 3.27 mCi sample to…

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Q: Complete each nuclear fission equation. 235 1 97 1 a. 92 U+on- 42 Mo+2 on 235 1 140 1 b. 92 U on- 56…

A: A radioactive decay process or a nuclear reaction is known as nuclear fission.

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: A The balf-life of barium-131 is 12 days. How many grams remains after 60 days if the initial sample…

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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: 6. Determine the identity of the daughter nuclide from the electron capture by Be. O He Не O 11 Li…

A: Electron capture is a process in which the proton-rich nucleus of an electrically neutral atom…

Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 5.2 g remain. What is the original…

A:

Q: Cobalt-60 is commonly used as a source of beta-particles. How long does it take for 87.5% of a…

A: Radioactive decay is associated with the emission of small energetic particles e.g. beta particles,…

Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 3.3 g remain. What is the original…

A: Answer

Q: 4. What is the energy released in this nuclear reactionO+n →C+He? (The atomic mass ofO is 16.999132…

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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 isotope shown has a mass of 14.003241 amu. Calculate how much energy is released from the…

A: Given, The mass of an isotope =14.003241 amu To calculate how much of the energy is released from…

Q: Plutonium-236 is an alpha emitter with a half-life of 2.86 years. How long will it take for the 1.20…

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Q: For a radioactive isotope with t1/2 38.7 hr, how many hours will it take for a 3.27 mCi sample to…

A:

Q: The isotopic mass of 21086Rn is 209.989669 amu. When thisnuclide decays by electron capture, it…

A: The nuclear reaction of electron capture can be written as Rn86210 + e-10 →  At85210 Energy released…

Q: Fluorine-21 has a half life of approximately 5 seconds. What percent of the original nuclei would…

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Q: 1. The radioactive nuclide Co has a half-life of 5.27 years. Calculate the mass of Co that remains…

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

Q: A 26.00-g sample of water containing tritium, 3 1H, emits 1.50 * 103 beta particles per second.…

A: In radioactive decay, radioactive atom's nuclei (unstable) eject energy as well as charged particles…

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: The radioactive nuclide ⁶⁰₂₇ Co has a half-life of 5.27 years. Calculate the mass of ⁶⁰₂₇Co that…

A: Given,

Q: What is the half‑life of an isotope that decays to 3.125%3.125% of its original activity in 41.8 h?

A: All radioactive decay follows first order kinetics. The half-life t1/2 of the radioactive decay is…

Q: Polonium-218 is an alpha emitter with a half-life of 3.0 minutes.If a sample contains 55 mg of…

A: To find alpha emissions:

Q: Polonium 209 (Po-209) has a half life of 103 years. How long would it take a 100-g sample to decay…

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Q: An 80.0 g sample of iodine-131 was placed in a sealed vessel forty days ago. Only 2.5 g of this…

A: Decay reactions are first order reactions. Since we know that the relationship between the amount of…

Q: How many alpha particles are emitted per minute by a 0.0010-g sample of 238U that has been freshly…

A: Given, Mass of sample = .001 g Half life of uranium = 4.47 x 109 years = 4.47 x 109 x 3.156 x 107…

Q: A 58 mg sample of a radioactive nuclide is administered to a patient to obtain an image of her…

A:

Q: A chemist wishing to do an experiment requiring "a (half-life = 4.5 days) needs 3.0 ug of the…

A: