Q3:-The half-life of 11 is 8.04 days. (a) Calculate the decay constant for this isotope. (b) Find the number of 31 nuclei necessary to produce a sample with an activity of 0.5 uCi.
Q: The half-life of 131I is 8.04 days. c) Convert 0.550 ?Ci to the SI unit the becquerel. (d) Find…
A: c) one curie is 3.7 x 1010Bq converting 0.05 micro curie we get, 0.05 μCi = 0.05 x 10-6 x 3.7 x…
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Q: DATING THE ICEMAN OTZI. On 19 September 1991, the Iceman dubbe "Ötzi" was discovered in the Italian…
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Q: Example 6: A test tube of an isotope having a decay constant of 0.765 × 10-6 s-1 contains 3.0 x 1017…
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Q: A radioactive isotope has a half-life of 72.0 min. A sample is prepared that has an initial activity…
A: Given Data: The half-life of a radioactive isotope is, t1/2=72.0 min The initial activity is,…
Q: e half-life of 131I is 8.04 days. (a) Convert the half-life to seconds. s (b) Calculate the decay…
A: "Since you have posted a question with multiple sub-parts, as per strict guidelines to us we will…
Q: Q3:- The half-life of 131 is 8.04 days. (a) Calculate the decay constant for this isotope. (b) Find…
A: Given data, Half life = 8.04 days Activity of the sample = 0.5 micro Curie
Q: Nitrogen-13 undergoes beta plus decay. Determine the daughter nucleus and compare the binding energy…
A: is a radioactive isotope that undergoes beta plus decay.In this process, a proton in the nucleus is…
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- d) A radioactive source has an activity of 3.6x107 Bq due to the decay of a radioisotope with a half-life of 7250 years. Calculate i) The decay constant ii) The initial number of atoms present.1) If the activity of a purely radioactive sample of 55Fe is measured to be 0.5 mCi. What is the number of nuclei of this isotope present after 5.4 years. 2) 226Ra (t₁/2 = 1600 y) alpha decays to the 1st excited state of nucleus X with branching ratio 6% and alpha decays to the ground state of X with branching ratio 94%. Calculate the partial half-life for the first mode transition (the one to the first excited state of X). 3) Fill the missing and decide the type of decay in the following decays: a) Co* → [ ] + Co b) ¹50 [ ] + [ ] + ¹5N 40 c) 10K + [ ] 18Ar d) 21 Po 84 e) ¹3 Be →>> 2a + [ ] ¹2Be + [ ]Radioactive potassium-40 has a half-life of 4.2 x 1016 s. a) Calculate the decay constant of potassium-40. b) A sample of potassium-40 has an initial mass of 1.0 g. Calculate the number of parent nuclei present in the sample, as well as the initial activity of the source. (One mole of potassium-40 has a mass of 40 g and NA = 6.0 x 1023 mol-1) c) Calculate the number of parent nuclei present in the sample after 9.2 x 1016 s.
- The following four questions either use T for true or F for false 7. The resulting daughter nucleus in a ß-decay and the original parent nucleus are two isotopes. ( ) 8. The probability per unit time that a radioactive nucleus decays in the next second depends on the type of the nucleus. () 9. The binding energy of a nucleus is equal to the energy which is necessary to break the nucleus into its constituent nucleons. ( 10. In gamma reaction the recoil energy Er is larger than the reaction energy Q (7. One of the many isotopes used in cancer treatment is 198 Au, with a half-life of 2.70 d. Determine the mass of this isotope that is required to give an activity of 225 Ci. mg VJSS f60 ssf ( sf60 ssf6. One of the many isotopes used in cancer treatment is 798 Au, with a half-life of 2.70 d. Determine the mass of this isotope that is required to give an activity of 225 Ci. mg cer16 cei t would be
- The half-life of 1311 is 8.04 days. (a) Convert the half-life to seconds. S (b) Calculate the decay constant for this isotope. S-1 (c) Convert 0.570 μCi to the SI unit the becquerel. Bq (d) Find the number of 13¹1 nuclei necessary to produce a sample with an activity of 0.570 μCi. 1311 nuclei (e) Suppose the activity of a certain 13¹1 sample is 6.90 mCi at a given time. Find the number of half-lives the sample goes through in 40.2 d and the activity at the end of that period. (Enter your answer for the number of half-lives to at least one decimal place.) half-lives mCiI need the answer as soon as possibleIf 88 (atomic number) 228 (atomic mass) ?? is produced, determine the parent isotope for each of the following types of decay and justify your answer. a) alpha decay b) beta negative decay c) beta positive decay
- 11. Radium-226, 226Ra, undergoes an alpha decay. The current sample of Radium-226 has an initial activity of 5.50 × 101º Bq. (a) Identify the daughter nucleus by name, nucleon number, atomic number and neutron number. (b) What is the decay constant? (c) How many radioactive nuclei were initially present in the sample? (d) How long will it take the sample to reach an activity of 5.00 x 1010 Bq?I need the answer as soon as possibleA 25-turn circular coil has radius of r = 3 [cm] and a resistance of R = 10 [Q]. The coil is in a uniform magnetic field of 0.46 [T] that is perpendicular to the plane of the coil. a. magnetic flux? What is the value of the b. What is the value of the induced emf and the induced current in the coil? lemf| = [V] I = [A] Now, the value of the magnetic field is increasing from 0.46 [T] to 2.1 [T] in At = 1.4 [s]. C. emf? lemf| I = What is the value of the induced [V] d. current in the coil? [A] What is the value of the induced