What is the product forms from the decay equation below? * 14 C --> 0,e + 145B 14 b. 14C 2He d. а. с. Ов C D ООО

Q: 29) a rock from the moon was found to contain 1.0 x 10* g (A,) of uranium-238 and 4.0 x 10“ g…

A: The half-life of a radioactive isotope (t1/2 ): All radioactive decay first-order reaction kinetics.…

Q: How much time is required for a 6.25-mg sample of 51Cr to decay to 0.75 mg if it has a half-life of…

A: The initial amount of the sample = 6.25 mg The amount of sample after time t = 0.75 mg. The…

Q: Isotope of uranium 234U decays to thorium by the alpha decay with the half-life of 7.73 x 1012 s.…

A:

Q: A sample of F-18 has an initial decay rate of 1.5 * 105 dis>s. Howlong will it take for the decay…

A: The given data contains, initial rate A0 = 1.5×105 dis s-1Final rate A=2.5×103 dis s-1 t1/2 = 1.83…

Q: Cobalt―60 is a radioactive isotope with a half-life of 5.26 years and emits beta particles. i.…

A: Half- life = 5.26 years. Cobalt-60 decays to Nickel-60 plus an electron and an electron…

Q: A patient is injected with 7.58 μCi7.58 μCi of radioactive iodine‑131 that has a half‑life of…

A:

Q: Complete the decay process that is showing below and naming the unknown product also find the…

A: Given : B83213i →Y213 + a + ν¯MV¯  = 2.2 eV/c2

Q: What is the binding energy in kJ/mol Cl for chlorine-37? kJ/mol 17'H+ 20,n C1 The required masses…

A:

Q: At the beginning of an experiment, a scientist has 348 grams of radioactive goo. After 75 minutes,…

A: Radioactive decay follow first order kinetics. The integrated rate law for the first order reaction…

Q: Radium 223 decays with a half life of 11.4 days. How long will it take for a 0.240mol sample of…

A: Half life of radioactive elements is given by    t1/2 =0.693λ      λ = disintegration constant.…

Q: What is the half-life of an isotope that decays to 25% of its original activity in 17.8 h?…

A: Given:- Let initial activity of an isotope=No Activity of isotope decayed in 17.8 h= x = 25% of No…

Q: 187 Cs has a half-life of 30.2 years. How many years will it take for a 100.0-g sample to decay to…

A: Given datas –  t1/2 = 30.2 years  t = ?  [A0] = 100.0 g  [At] = 1.20 g

Q: The half life of an isotope is 43 seconds.how long does it take 100.00 g of isotope to decay to 6.25…

A: Given data contains, Half-life of an isotope is 43 seconds. Mass of isotope before decay is 100.0 g.…

Q: A radioactive sample contains 9.5 x 1017 atoms of a nuclide that decays at a rate of 5.4 x 1013…

A:

Q: 187 Cs has a half-life of 30.2 years. How many years will it take for a 100.0-g sample to decay to…

A: Half-life of Cs is 30.2 years. Intial amount sample = 100 g  Final amount sample = 1.00 g

Q: Select the missing product of this decay reaction: 234 Th      ?   +   0 e 90   -1

A: When radioactive element releases beta particles we get an increased atomic number element.

Q: 27 30 A transmutation experiment was conducted at Al P + Y CERN where an aluminum atom was 13 15…

A: Given,  Aluminum atom was bombarded with an alpha particle     Required,                         X,…

Q: The half life of an isotope is 43 seconds. How long does it take 100.0g of that isotope to decay to…

A: Half life = 43 second k = 0.693half life= 0.69343 sec=0.016 s-1

Q: Radioactive tungsten-178 decays with a half-life of 21.6 days. (a) What is the value of k in s-12…

A: Given: The half-life of tungsten-178, t1/2 = 21.6 days Seconds in a day are given as: 1 day =…

Q: 2. A radioactive sample contains 9.5 x 1017 atoms of a nuclide that decays at a rate of 5.4 x 1013…

A: Radioactive disintegration follows first order kinetics.

Q: The half-life of 87Sr is 2.80 h. Calculate how much time it would take for an isolated quantity of…

A: Time required to decay for a radioactive molecule,t = 2.303Klogaa-x Where a is the initial amount…

Q: a substance with a half-life of 23.1049 seconds. you start with 12 mg of the substance (a) write the…

A: The decay of substance follow exponential rule. Half life is defined as the time required by any…

Q: Potassium-40 decays to argon-40 with a half-life of 1.27 * 109 yr. What is the age of a rock in…

A: It is given that potassium-40 decays to Argon-40 and has a half-life of 1.27×109 years and the mass…

Q: 1.What is the half-life of 99Tc if a 500.0 g sample decays to 62.5 g in 639,000 years 2)How much of…

A: Given,Mass 500 g,Therefore, the first half-life is 250.0g.Second half-life is 125.0g.Third half-life…

Q: The half-life of 1311 is 8.04 days. (a) Convert the half-life to seconds. (b) Calculate the decay…

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Q: The radioactive nuclide 235 U decays with at1/2 of 703.8 million years. Calculations reveal that…

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Q: An unknown radioactive substance is currently decaying. Initially, the sample contained 16.1g of the…

A:

Q: Calculate the time required for 23.40 % of a sample of 110X (t1/2 = 15.2 h) to decay. Use the…

A: For first-order kinetics,                                                  ln[A]t[A]o= -kt…

Q: 187 Cs has a half-life of 30.2 years. How many years will it take for a 100.0-g sample to decay to…

A:

Q: What is the binding energy in kJ/mol nucleons for chlorine-35? kJ/mol nucleons 17;H+ 18;n→Ci The…

A: Since you have posted more than 1 question so we can do only first question for you. If you want…

Q: Iodine-125 (¹251) is used to treat, among other things, brain tumors and prostate cancer. It decays…

A:

Q: What is the half-life of an isotope that decays to 3.125% of its original activity in 63.6 h?…

A: We know that,  N(t) = N0(1/2)t/t1/2 No = initial amount  N(t) = amount of substance at time t t1/2 =…

Q: 3. What is the half-life of a 100.0 g sample of nitrogen-16 that decays to 12.5 g of nitrogen-16 in…

A: Given: Initial mass of nitrogen-16 (N0) = 100g Final mass of nitrogen-16 (N) = 12.5g Time (t) = 21.6…

Q: 187 Cs has a half-life of 30.2 years. How many years will it take for a 100.0-g sample to decay to…

A: Half life means time takwen by the sample to reachhalf of its concentartion.  Remains afetr t time =…

Q: 225 Ac 9.9 d 221Fr de days 4.8 m h hours meminutes Sseconds ms milliseconds usmicroseconds X1 32 ms…

A:

Q: 13' Cs has a half-life of 30.2 years. How many years will it take for a 100.0-g sample to decay to…

A:

Q: 3. 137Cs has a half-life of 30.2 years. How many years will it take for a 100.0-g sample to decay to…

A:

Q: ubidium-87 decays by B production to strontium-87 with a half life of 4.7 x 1010 years. What is the…

A:

Q: 22) Iodine-123, used in thyroid therapy, has a half-life of 13.27 hours. Iodine-123 decays via a…

A: Given data:  Iodine-123 used in thyroid therapy ,has a half -life =13.27 hours  Iodine -123 decay…

Q: 14Cdecays by B-emission and after 12.0 h, ninety percent of the radioactive substance remains.…

A:

Q: Potassium-40 decays to argon-40 with a half-life of 1.27 x 109 yr. The age of a mineral sample that…

A: The age of the sample follows first order kinetics. This method is known as carbon dating. First…

Q: A decay sequence for a radioactive atom of radon 219 to stable lead 207 atom is as shown below.…

A: Radioactive deacy is the spontaneous breakdown of atomic nucleus from nucleus and release energy and…

Q: The half-life of stroncium-90 is 28 years. How long will it take a 50-mg sample to decay to a mass…

A:

Q: A meteor has a Pb-206: U-238 mass ratios of 0.755:1.00. What is the age of the meteor? (Uranium-238…

A: GIVEN: Pb-206:U-238 mass ratios =0.755:1.00 Half life=4.5*109 years To Solve: Age of the meteor=?…

Q: A patient is given 0.050 mg of Tc-99. How long until the isotope decays to 6.3 x 103 mg? (Half life…

A: Given  Mass of Tc-99  [ A0 ] = 0.050 mg  Remaining Tc -99 [ At ] = 6.3 × 10-3 mg  Half life ( t1/2 )…

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: Phosphorus-32 (3215P) decays by beta emission and it has a half-life of 14.3 days. Determine the…

A: Answer - The correct option is (A) 5.2 x 104 Ci

Q: If 2.4 x 1010% of the atoms of a radioactive isotope disintegrate in 1.0 yr, what is the decay…

A: Since for the decay reaction, the relationship between the final % and initial % is given by…

Q: The half-life of a particular radioactive isotope X is 10.0 days. (1) Determine its decay constant.…

A: half life = 10.0 days.

Actinides

The elements in which the extra electron tends to enter the 5f-orbitals of (n–2)th main shell are considered 5f-block elements. They are also named actinides. Actinides include 15 elements, from atomic number 89 to 103.