212 Ph →0 B+212 Bi+°T 82 -1 83 212 Pb →0 B+212 Bi+y 82 -1' 83 212 Pb →B +1Tl+;v 82 212 Pb →a+ + 212 Bi+y 82 83

Q: You are an archaeologist, and send some leather clothing found at a burial site to be radiocarbon…

A: The general formula for the activity as a function of time t is given by, Here, A, Ao, λ and t…

Q: Astatine-211 undergoes gamma decay. Given the changes, if any, in the nucleus produced by this type…

A: In gamma decay energy is released in the form of photons but number of protons and neutrons remain…

Q: 24AI 25AI 26AI B+ B+ B+ Mg Mg Mg B+ Stable Stable Na 24Na B- Na B+ Stable 2"Ne Ne Ne Stable Stable…

A: 1. Magnesium

Q: radioactive

A:

Q: Find the activity A of a sample containing 4E-6 g of 60/27 Co (T1/2= 5.27 years). (Use 59.93 u as…

A: the problem is based upon the concept of radioactivity. Using the formula for the activity of a…

Q: A certain radioactive nuclide decays with a disintegration constant of 0.0256 h. (a) Calculate the…

A: We have, disintegration constant, λ=0.0256 h-1 we have to find the half-life, a fraction of the…

Q: By READING the R vs t graph shown below, determine R, & the half-life. R (x10¹2 decays/h) 80 60. Ro…

A: Given From the given graph of Decay rate vs time  R0 is the rate of decay at t =0 Therefore ,   R 0…

Q: β− decay of 3H (tritium), a manufactured isotope ofhydrogen used in some digital watch displays,…

A:

Q: Find the energy released in the alpha decay of 22086Rn (220.01757 u). (Hint: 21684Po has a mass of…

A:

Q: The radiocarbon content of 14C decreases after the death of a living system with a half-life of 5730…

A: The formula of the radioactivity is given below where, T is the half life, t is the time, Ro is the…

Q: A certain isotope has a half-life of 9.82 h. What is its decay constant in s-1?

A: Given, The half-life of an isotope, t12 = 9.82 hr

Q: Radon-222 has a half-life of 3.8 days. What mass of radon-222 would have a decay rate of 2220 Bq?…

A: We use the formula of rate of decay to get the required values.

Q: A particle travels along the path y² =6x with a constant speed of 5 m/s. Determine the x and y…

A: A particle travels along the path y2 =6x with a constant speed of 5 m/s. Determine the x and y…

Q: You are assisting in an anthropology lab over the summer by carrying out 14C dating. A graduate…

A: Let A denote the activity of the sample, t denote the time taken n decay. The time taken for n…

Q: Identify the daughter nucleus when the following undergo alpha decay: (a) 228/90Th (b) 212/11Na and…

A: In alpha decay, an alpha particle (which consists of two protons and two neutrons) is emitted from…

Q: Problem 3 – Consider a 210Po (209.982848 u) nucleus that undergoes a decay resulting in 20 Pb…

A:

Q: α decay producing 208 Pb . The parent nuclide is in the decay series produced by 232 Th , the only…

A:

Q: Earth is about 4.6 billion years old. If 235U is 0.72% abundant today, what was the ratio of 235/238…

A: Given: The time period of earth formation t = 4.6 billion years. The ratio of the 235 and 238…

Q: (a) For the nuclei Li and Be, determine the difference in binding energy per nucleon (in MeV). (Let…

A: Given,mass pf proton mp =1.0078umass of neutron mn=1.0087umass of Li =MLi=7.0160umass of Be…

Q: 5. B-10 (D.p) reaction. Identify the: Daughter nuclide: 1. Reaction Equation: 2. 1°C "C B+ B+ Stable…

A: Given, B-10(n,p) reaction

Q: A (ə) ?H + H - x + n 4 2He o He 3 3 H. A (b) ?H+ 스x → 글He + bn O He Не 3 Не 2 He 3 1 O H

A: a) Answer is H24e The unknown mass number is 2+3=A+1A=5-1=4 The unknown atomic number is 1+1=Z+0Z=2…

Q: The decay rate of a radioactive source decreases by 28% in 80 h. Determine the half-life, decay…

A: The decay rate for a radioactive material follows the following decay equation A=Aoe-λtA is the…

Q: U235 has a decay constant of 3.138 × 10-17 s-1. Activity of 1 ug of the sample will be 80.386×10-3…

A: Unstable nuclei become stable by radiating energy. This process is called radioactivity. The rate at…

Q: A radioisotope has a half-life of 5.00min and an initial decay rate of 8000 Bq. (1.) What will be…

A:

Q: Iodine ( A= 131, Z= 53 ) undergoes a β- decay. What is the resulting daughter nuclide?

A: Parent nuclide : Iodine A = 131 Z = 53 Decay mode = beta negative decay

Q: A certain isotope has a half-life of 9.06 h. What is its decay constant in s-1?

A: Given: The half life time is 9.06 h.

Q: Find the activity A of a sample containing 4E-6 g of 60/27 Co (T1/2= 5.27 years). (Use 59.93 u as…

A: Given : Half life of cobalt 60/27=5.27 years  Mass of the sample = 4×10-6 gram Atomic mass of cobalt…

Q: Write the complete equations for the following reactions: (a) B decay of a nucleus produces Ba-137…

A: A) Ba56137  B) 0816

Q: radioactive

A:

Q: 15. When U-232 undergoes alpha decay to Th-228, a mass lost is sustained. (1) Find the mass defect…

A: The exact mass of U-232 is 232.0372 amu. The exact mass of Th-228 is 228.0287 amu.The exact mass of…

Q: A radioactive nuclide decays through two modes. The first mode has the branching ratio 0.79 and the…

A: According to question, parent nuclide decay in two modes, where, the branching ratio of first mode…

Q: Q41. A radioactive source has a half-life of 20 days. Calculate the activity of the source after 70…

A: Radioactive elements emit radiation of different types. With time the amount of the radioactive…

Q: (a) Natural potassium contains 40K , which has a halflife of 1.277 X 09 y. What mass of 40K in a…

A: Half-life of k-40 1.277 X 09 y Decay rate of 4140 Bq   a) Number of k-40 nuclei…

Q: NUCLIDE CHARTS The nuclide of interest is Sc-49. Identify the: Decay mode: 1. Daughter nuclide: 2.…

A: 1. decay mode =β-

Q: Find the activity A of a sample containing 4E-6 g of 60/27 Co (T1/2= 5.27 years). (Use 59.93 u as…

A:

Q: Rn-222 undergoes alpha decay. The daughter nuclide can further undergo either an α or a β-decay.…

A: When an unstable atom undergoes alpha decay, the mass number of the unstable atom decreases by four…

Q: Find the energy released in the alpha decay of 92238U. The following mass value will be useful:…

A: The alpha decay is

Q: β+decay of 52Fe.

A: In +tive beta decay or β+ decay, there is emission of positron and neutrino from particular…

Q: 4.8 x 1016 Bq/kg? Hc Aftor contu SON

A: Given: Specific activity is 4.8×1016Bq/Kg. Half life is 5.3 years. Average energy is 1.9×10-13J.

Q: A.) Natural potassium contains 40K, which has a half-life of 1.277 ✕ 109 y. What mass of 40K in a…

A: Decay Rate: The independent variable that is determined by taking the reciprocal of mean of a…

Q: 3) Two cars were involved in an accident, and you are trying to determine if either car exceeded to…

A: Apply the momentum conservation equation along the horizontal direction to calculate the speed of…

Q: Answer the following questions about the radiochemistry involved in PET scans. All answers are…

A: To explain the correct answer is given below.

The Bohr model

Students often get confused between Rutherford’s model and Bohr model of an atom. They interpret the postulates of both these models to be the same, which is incorrect. Rutherford’s model differs from Bohr’s model in the following ways: