( in Hours) will it take to disintegrate 3.17 x1017 atoms from a 12.0 mCi ( millicuri

Q: The isotope ⁶⁹Zn undergoes what mode of radioactive decay? A) α emission B) β⁻ emission C) electron…

A: Solution - The isotope ⁶⁹Zn undergoes mode of  β⁻ emission radioactive decay

Q: b- Complete the nuclear reactions that are showing below and calculate the kinetic energy of lighter…

A: A question based on nuclear chemistry, which is to be accomplished.

Q: 9.) Cesium-134 undergoes decay by B emission and has a half-life of 2.0 years. How much of a 3.50-g…

A: Given:                 Half life of Cesium-134 is 2.0 years                 Taken mass of Cesium-134…

Q: Which of the following represents the three main types of radiation ranked by increasing penetrating…

A: The ability of  radiations to pass through matter is expressed in terms of penetration power.  In…

Q: How long (in hours) would it take to disintegrate 3.17 × 1017 atoms from a 12.0-mCi (millicurie)…

A: Activity = 12.0 mCi = 12 * 10-3 Ci

Q: Draw the decay scheme diagram for the Cs-137/Ba-137m Isotope Generator.

A:

Q: Radon, one of the noble gases, is a decay product of uranium is itself radioactive, with a half-life…

A: Here we are asked to write the nuclear equation for the alpha decay ofRn-222

Q: Determine the missing element                ?   ----->  90234Th     +     24He

A: The missing element is being shown below

Q: Potassium-40 emitting a B particle to form a new isotope 40(top) 19(bottom) K>>>> x y Z + B X= Y=…

A: The given statement is: K1940 →Zyx + β-we know that during β- emission:i) The sum of mass number on…

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: A human skeleton excavated from an ancient burial ground is found to contain only 0.27% as much…

A: Given,  A human skeleton excavated from an ancient burial ground is found to contain only 0.27% as…

Q: A hospital needs 0.8 g of 133Xe for a lung-imaging test. If it takes 7 days to receive the shipment,…

A: We have to calculate the amount to be ordered.

Q: Beginning with 500g, calculate how much of a radioactive compound remains after 152 seconds if the…

A:

Q: How much of a 500g sample of K-42 is left after 37.2 hours if the half-life of K-42 is 12.4 hours?…

A: The radioactive decay follows first-order kinetics. We know that the half-life of  K-42 is 12.4…

Q: Find the activity of a sample containing 1.51 x 10-6 g of  6027(Co) (T1/2 = 5.27 years).

A:

Q: Potassium-40, which is presumed to have existed at the formation of the Earth, is used for dating…

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

Q: 1a) How long will it take for 30 g of 222Rn to decay to 7.5 g? 1b) How many grams of 1°N will be…

A:

Q: Phosphorus-32 has a half-life of 14.0 days. Starting with 6.00 gg of 32P32P, how many grams will…

A:

Q: What are the particles emitted by radio active element after 3 consequtive disintegrations? A) 2…

A: Isotopes are having different mass numbers but the same atomic numbers.   So the number of protons…

Q: Phosphorus-32 has a half-life of 14.0 days. Starting with 8.00 g of 32P, how many grams will remain…

A:

Q: What percentage of a radioactive sample remains after 3 half-lives? O 25% O 12.5% O 6.25% O 3.125%

A: No of half lives=3 Percentage of radioactive sample=?

Q: Gold-198 has a halflife of 2.7 days. How much of a 872.5 mg gold-198 sample will remain after 13.5…

A: Given:  Half-life (t1/2) of gold-198 = 2.7 days The initial amount of gold-198 = 872.5 mg

Q: The half-life of Po-214 is 0.001 seconds. How much of a 10 gram sample is left after 0.003 seconds?…

A: Rate of a reaction determines the speed with which a reaction proceeds. First order reaction is a…

Q: Gold-198 has a half-life of 2.7 days. How much of a 275.1 mg275.1 mg gold-198 sample will remain…

A: All radioactive disintegration follows 1st orderkinetics.For 1st order reactionK=1t in AoAtK=Rate…

Q: 6.) Cesium-134 undergoes decay by B emission and has a half-life of 2.0 years. How much of a 3.50-g…

A: Given:                 Half life of Cesium-134 is 2.0 years                 Taken mass of Cesium-134…

Q: How much energy will be released by the reaction of 1 gram of 23>U by the following reaction: 235y +…

A: Given the mass of U-235 = 1 g  Molar mass of U-235 = 235.043922 g/mol  Conversion factors: 1 mol =…

Q: The Institute of Energy and Nuclear Research (IPEN) is the research unit of the MCTI responsible for…

A: Given , Initial Activity of tracer produced,CA0 = 115 mCi Time, t = 15 hr Activity of trcaer when…

Q: The half life of 52Fe is 8.28 hours. Suppose we measure the activity of a sample containing 52Fe and…

A: Calculation of disintegration constant (λ):T1/2 of 52Fe is = 8.28 hours.

Q: Complete the table shown to the right for the​ half-life of a certain radioactive substance. ​…

A: Here we are required to find the decay constant for the given radioactive substance

Q: 1. Radon-222 has a half-life of 3.8 days. How many half-lives will pass after 38 days? O15 19 5 10

A:

Q: 210Pb has a half-life of 22.3 years and decays to produce 206Hg. If you start with 7.50 g of 210Pb,…

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

Q: In the 1950s, radioactive material was spread over the landfrom aboveground nuclear tests. A woman…

A: Nuclear reactions:- These are those reactions which never ends. Therefore, these follow first order…

Q: Chromium-51 is a radioisotope that is used to assess the lifetime of red blood cells The half-lfe of…

A: Given: The half-life of chromium-51 is 27.7 days The amount of the isotope is 34.3 mg The time (t)…

Q: How many days will it take for ₈₈Ra with half  life of 15 days decay from 2 mole to 0.5 mole

A:

Q: Complete the table shown to the right for the​ half-life of a certain radioactive substance. ​…

A: Solution - Decay rate - The decay rate of a radioactive substance is characterized by the following…

Q: The isotope Ga-68 has a half-life of 68 minutes. If a diagnostic test is begun with 15 mCi of this…

A:

Q: The concentration of Rn-222 in the basement of a house is 1.25 x 10 mo/L. Assume the air remains…

A: Given: Initial concentration of Rn-222 = 1.25×10-6 mol/L The half-life of Rn-222 = 3.82 days Time of…

Q: Th-232 (goes through a decay) → ? (goes through B decay) → ? (goes through B decay) → ? (goes…

A: We have to write the product for a portion of the radioactive decay series that starts with Th-232…

Q: 210Pb has a half-life of 22.3 years and decays to produce 206Hg. If you start with 7.50 g of 210Pb…

A: The radioactive decay involves disintegration of the unstable nuclei to form stable daughter nuclei.…

Q: Which isotope in the list below is most likely to be used for medical purposes? O 222Rn, t/2= 3.8…

A: In the given isotopes there are almost all have there uses in their respective field. But one of…

Q: Radium-226 (atomic mass - 226.03), the only naturally occurring isotope of this element, follows the…

A: Since the half-life of the 2nd and 3rd decay are very small in comparison to the 1st one, the 2nd…

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: A medical technician is working with the four samples of radionuclides listed in the table below.…

A:

Q: How much energy will be released by the reaction of 1 gram of 23>U by the following reaction: 235y +…

A:

Q: Which of the following is(are) the product(s) of the fusion reaction ²H + ³H -->? A) 'H + *H B) “He…

A: For fusion Reaction :: 2H + 3H ---> ?

Q: The half-life of 232Th is 1.4 x 10" yr. Find the number of disintegrations per hour emitted by 1.0…

A:

Q: The reaction p+188O→189F+n requires an input of energy equal to 2.438 MeV . What is the mass of…

A: In a nuclear fission reaction, the bombardment of a heavier nucleus by the lighter particles such as…

Q: 9 points The half-life of Zn-71 is 2.4 minutes. If one had 100.0 g at the beginning, how many grams…

A: Answer

Q: A volcanic eruption melts a large area of rock, and all gasesare expelled. After cooling, ⁴⁰₁₈Ar…

A: Half-life of potassium-40 = 1.25 x 109 year A = The final amount of 40 K left = 1.38 mmol  A0 =…

Q: The most significant source of natural radiation is radon-222. Radon-222, a decay product of…

A: Answer a: How many alpha and beta particles are produced when uranium-238 decays to radon-222? What…