3. The half life of 9U?N against alpha decay is 4.5 x 10" years. Find the activity of I kg of

Q: 90 4. A certain container has 0.56 grams of Sr. calculate the 90 Sr is this material in unite of…

A: this is the question  about disintegration of active material.

Q: The isotope 79Au198 (atomic mass 197.968 u) of gold, which has a half-life of 2.69 days, is used in…

A:

Q: A radioactive material has a half-life of 2.5 hours. The activity of a sample was measured to be 375…

A:

Q: Bismuth, 214Bi decays by alpha decay with a half-life of 19.7 minutes. What is its decay constant?…

A: Formula of half-life of radio active element is as follows: T12=0.693λ…

Q: A 5000-Ci 60Co source used for cancer therapy is considered too weak to be useful when its activity…

A: Basic Details The ratio of the activity depends on the decay constant and the time taken.

Q: Att=0, a radioactive sample contains 3.50 ug of pure 11 "C, which has half-life of 20.4 min. The…

A:

Q: What is the alpha activity of a 10-kg sample of 235U that is used in a nuclear reactor?

A: Given: Mass of the sample m = 10 kg.

Q: The physical half-life of 113m/n (Indium isotope) is 1.7 hours. The init sample has 1.07×1016 atoms…

A: We have givenT1/2=1.7 hInitial number of atoms= N0=1.07×1016atomsInitial mass (m)=2μg

Q: A certain isotope has a half-life of 6.4 h and an atomic mass of 87.29 u. What will the activity in…

A:

Q: The radioactive nuclide Plutonium-199 has a half-life of 43.0 min. A sample is prepared that has an…

A:

Q: ma nuclear accident absorbe 1 370,000 Bq. Assume thata p in the skeleton. The skelet person's body…

A: A dose equivalent is given as, Sv=dose in Gy×RBEHere, RBE=1Dose in Gy=energy absorbedmass of…

Q: The half life of 92U 238 against alpha decay is 4.5x109 years. Find the activity of 1 kg of 92U 238

A:

Q: Bismuth, 214Bi decays by alpha decay with a half-life of 19.7 minutes. What is its decay constant?…

A: Given:Bismuth, 214Bi decays by alpha decayHalf-life,t1/2= 19.7 minutes.Find  its decay constant.Now,…

Q: alf-life of this sample?

A:

Q: 1. The radium isotope 223Ra, an alpha emitter, has a half-life of 11.43 days. You happen to have a…

A: Half life of 223 Ra given = 11.43 days Mass= 1 gm mass of water to boil = 100 ml x 1 gm/ml = 100 gm…

Q: A radioactive sample with a half-life of 5.3 weeks has 1.04e+15 nuclides present in the initial…

A:

Q: 4. What is the energy released/absorbed in this nuclear reaction 4N+H³C+2He? (The atomic mass of 14…

A: Solution    Given data714N+12H=613C+23HeWhat is energy released/ absorbed in this nuclear reaction?

Q: The radium isotope 226 Ra has a hall-life of 1600 years. A sample begins with 3.50x1010 226 Ra atoms…

A: The half-life of 226Ra is T1/2 = 1600yr and the Initial amount is N0 = 3.50 x 1010

Q: A certain isotope has a half-life of 5.9 h and an atomic mass of 95.98 u. What will the activity in…

A:

Q: 3. An ancient club is found that contains 150 g of pure carbon and has an activity of 4.5 decays per…

A: Half life of carbon = 5700 yearsAvogardro number one year = 3.153x107sWe know thatand we know that…

Q: Bismuth, 214Bi decays by alpha decay with a half-life of 19.7 minutes. What is its decay constant?

A: Half life  = t = 19.7 minutes  I minutes = 60 sec  So t = 60*19.7 t =1182 sec  The decay constant is…

Q: The half-life of Ra-226 is 1.60 x 10^3 years = 5.05 x 10^10 s Find k What is the activity in…

A: The objective of the question is to find the decay constant (k), the activity in curies of a 1.00 g…

Q: 198 79 7. One of the many isotopes used in cancer treatment is isotope that is required to give an…

A:

Q: The radioactivity nuclide Plutonium -199 has a half life of 43.0minute. A sample is prepared that…

A:

Q: A 60kg person accidentally ingest a small sources of alpa particles (RBE=15). The activity of the…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…