If a dose rate from a sample of In-111 was found to be 5.0 x 10-5 ( to the negative 5)mSv per hour at 1.8 metres, calculate the dose rate at 4.8 metres. (Answer upto 2 significant figures)

Q: - (i) The mass collision (electronic) stopping power (Sm = S/p) of a 5-MeV proton in silicon is 59.0…

A:

Q: If 200. mg of fluorine-18 is shipped at 8:00 A.M., how many milligrams of the radioisotope are still…

A: The term radioactive substances can be defined as the atoms which have the tendency to decay…

Q: Stephanie is a radiation worker, as part of her job she spent 2 weeks fixing a valve in high level…

A: 3.3 Ci/cm = 3.3 x 109 Bq/cm 2.5 mSv/Bq x (3.3 x 109 Bq/cm) = 8.25 x 108 mSv 8.25 x 108 mSv = 8.25 Sv…

Q: Probably meant in the calculation that 20*10K+20=0.6, but how did you get that to be 20=6K+12?

A:

Q: 128Ba+ ____  -->  128Cs         Alpha emission     Beta emission     Positron emission…

A: The atomic number of Ba is 56 and Cs is 55 Hence the reaction taking place is (assuming the unknown…

Q: Write a balanced equation for alpha decay of platinum-190, beta decay of indium-113, and for capture…

A: Write a balanced equation for alpha decay of platinum-190, beta decay of indium-113, and for capture…

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: Explain how carbon-12, carbon-14 , and nitrogen-14 would be different at an atomic level.

A: Atoms are differed by no. Of protons and neutrons.  Atomic no. Is the no. Of protons And mass no. Is…

Q: A certain drug has a half-life in the body of 2.0 h. Suppose a patient takes one 200. mg pill at…

A: Half life of the drug = 2 h Amount of drug initially present = 200 mg+200 mg = 400 mg Time = 11 – 7…

Q: (7) Carbon-14 dating is used in archeology to determine the age of items that were alive or were…

A: First, we need to know the half life of carbon-14, which is approximately 5,730 years. The…

Q: A certain drug has a half-life in the body of 3.0 h. Suppose a patient takes one 250. mg pill at…

A: Given , mass of pill = 250 mg half life of drug = 3.0 h

Q: The isotope of plutonium 238 pu. Part 1 of 2 (a) If the half-life of 238 Pu is 87.7 yr, write a…

A:

Q: in the equation 228/90Th -------> 228/91Pa + x which particle is represented by X?

A: The term atomic number is used to describe the total number of protons which are present in the…

Q: All of the following are extended coverage perils under an HO-2, EXCEPT:    A: Burglar damage.

A: All of the following are extended coverage perils under an HO-2, EXCEPT Burglar damage .burglary is…

Q: assume that r max is 1.0 and the carrying capacity is 2,000. calculate the population growth rate…

A:

Q: How many grams of 32P are there in a 5 mCi source?

A: Specific Activitty = 6.022×1023M×t12p32=t12= 14.29 daysSA = 6.022×102314.29×24×3600×32SA= 2.85×105…

Q: What is the process of elution in extracting Ba-137 from the Isotope Generator (2-3 sentences would…

A: Answer: During the process of elution Ba-137 is wiped out of the isotope generator. The elution…

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

A: If t is the time required to reach the concentration N from an initial concentration N0, and t1/2 is…

Q: A certain drug has a half-life in the body of 2.0 h. Suppose a patient takes one 100. mg pill at…

A:

Q: A 0.574-g sample of a chlorocarbon compound was analyzed by burning it in oxygen and collecting the…

A: Given data: Molarity of AgNO3 = 0.28 M Volume of AgNO3 = 26.21 mL Molarity of KSCN = 0.122 M Volume…

Q: Unknown compound D has a melting point of 102-103 degrees C. Carbon/ Hydrogen analysis of compound D…

A:

Q: A burnt piece of wood found at an archaeological site contained 0.0462g of 14^ C (t 1/2= 5.70*…

A: Mass of wood obtained = Nt =0.0462 grams Half life of C-14 = t½ = 5700 years  Age of burnt wood = t…

Q: Mr. Albedo stumbled upon an unknown material in an abandoned laboratory. He believes that this…

A:

Q: K=Ae- Ea/RT. Lnk=?

A: Interpretation: K=Ae- Ea/RT. Lnk=?

Q: Assuming a constant 14C/12C ratio of 13.6 counts per minute per gram of living matter, how old is a…

A:

Q: If 1.000 g of 226/88 Ra produces 0.0001 mL of the gas 222/86 Rn at STP (standard temperature and…

A:

Q: X b A uranium-235 nucleus decays b X 101 Chem 101 X app.101edu.co Submit Question 20 of 42 A balloon…

A: According to the Charles law, the volume of an ideal gas at a constant pressure will be directly…

Q: The ratio of the isotopes carbon-14 (14C, radioactive and decaying) to carbon-12 (12C…

A: The ratio of the isotopes carbon-14 (14C, radioactive and decaying) to carbon-12 (12C…

Q: Question 24 of 30 Americium-241 is widely used in smoke detectors. Calculate the amount of…

A:

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

A: One of the common unit in which the rate of disintegration is expressed is Curie.1…

Q: What is the age of a rock in which the mass ratio of 40 Ar to 40K is 4.2? Express your answer using…

A: Given mAr/m K = 4.2

Q: A certain drug has a half-life in the body of 2.0 h. Suppose a patient takes one 50.0 mg pill at…

A: A drug can be defined as medication which is used to cure and treat diseases.

Q: The hat life for the radioactive decay of rubidium-87 to strontium-87 is 4.88 x10^10 years. Suppose…

A:

Q: What is the elapsed time for a fossil sample that was found containing 03125g of carbon-14 that was…

A: Given in the question, Half life of the reaction;  t1/2 = 5730 years Initial concentration of carbon…

Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.