According to current regulations, the maximum permissibledose of strontium-90 in the body of an adult is1 μCi (1x 10-6 Ci). Using the relationship rate = kN, calculatethe number of atoms of strontium-90 to which thisdose corresponds. To what mass of strontium-90 does thiscorrespond? The half-life for strontium-90 is 28.8 yr.

Q: How long will it take for 1.800 mg of promethium-144 to decay to 0.1125 mg? The half-life is 17.5…

A: we have to calculate the time taken for 1.800 g promethium to decay to 0.1125 g

Q: 150-water is a radioactive variation of regular water, in which some usual oxygen atoms are replaced…

A:

Q: Americium-241 is widely used in smoke detectors. Calculate the amount of americium-241 consumed in a…

A:

Q: The half-life of Sr is 28 years. How long will it take for a given sample of Sr to be 68% decomposed…

A: Radioactive decay reactions are the process of decaying radioactive elements like 90Sr. During the…

Q: The half life for the radioactive decay of potassium-40 to argon-40 is 1.26 x 10' years. Suppose…

A: Given data, Half-life = 1.26 × 109 years At the time of analysis, amount of argon-40 = 0.716 mmol…

Q: One of the stable isotopes of Mg is Mg-24 What is the atomic number of Mg   Enter whole number only…

A: Given  isotope of Mg -24  a) Atomic number is defined as the number of protons present in the…

Q: A sample of a newly discovered element, West Virginium, has a half-life of 155 years.  How long…

A:

Q: ^35 S (abundance 0.02%) is the longest living of the sulfur radioactive isotopes. It is formed from…

A: Answer - Nuclear reaction -  a nuclear reaction is semantically considered to be the process in…

Q: The 14C in a bone has a disintegration rate of 4000 dis h1. The half life of 14C is 5730 years.…

A: The rate of disintegration is proportional to the number of atoms left after a time (N) as- Where…

Q: The half-life of the radioactive isotope uranium-234 is 2.47 × 10° years. How long will it take for…

A: We have given that  Half life of Uranium-234 = t1/2 = 2.47×105 years [N]0 = 72.4 μg  [N]t = 9.05 μg…

Q: [Refere A 1.14 g sample of a radioactive isotope decays to 0.87 g in 36.3 hr. What is the half-life…

A: Given  Initial Amount [ A ]0   = 1.15 gram  Remaining Amount [ A ]    = 0.87 gram  Time ( t ) = 36.3…

Q: A certain drug has a half-life in the body of 7.0 h. What should the interval between doses be, if…

A: Given that : The half-life of the drug = 7.0 h Let the initial concentration of the drug be x

Q: The half life for the radioactive decay of carbon- 14 to nitrogen- 14 is 5.73 xx10^(3) years.…

A: Given;Half life for the radioactive decay of carbon-14 to nitrogen-14 = 5.73 x103 yearsMillimoles of…

Q: The half-life time of an isotope of element X is 7.4 hours. Assuming that you start with 431 mg of…

A:

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

A: The half-life is  .The initial amount is .The final amount is .To find the age of the rock.

Q: Thorium, a rare element in the earth's crust, has over seven radioactive isotopes. Of of these Th…

A: The rate of the reaction is referred to the change in the molar concentration in the distinct…

Q: If the amount of radioactive sodium-24, used for studies of electrolytes within the body, in a…

A: Given information:Initial concentration = 1.6 mgFinal concentration = 0.2 mgTime = 45.0 hours

Q: An atomic isotope radioactively decays and has a half-life of 23.7 days. How many days will it take…

A: In order to solve this question, we will follow the rule that all radioactive disintegration decays…

Q: Technetium-99m is a metastable nuclide used in numerouscancer diagnostic and treatment programs. It…

A: a) Given: Rate constant, k can be calculated using the given equation as follows,

Q: How old in years is a bottle of a solution if the deuterium 2H content is 67% that of a new wine?…

A: Intial amount of deuterium = 100  Final amount of deuterium = 67  Half-life of deuterium = 1 century…

Q: (d) How long does it take for 90% of a given quantity of the radioactive element cobalt-60 to decay,…

A:

Q: Phosphours-32 is a commonly used radioactive nuclide in bichemical research, particularly in sutdies…

A: Mass of P-32 present in 175 mg of  Na332PO4 Molar mass of  Na332PO4 = 164 g/mol  164 g  Na332PO4…

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: The half life for the radioactive decay of potassium-40 to argon-40 is 1.26 x 10 years. Suppose…

A:

Q: In living organisms, C-14 atoms disintegrate at a rate of 15.3 atoms per minute per gram of carbon.…

A:

Q: 81. Suppose a rock sample initially contains 250 grams of the radioactive substance unobtainium, and…

A: All radioactive decays follow first-order kinetics where the rate of reaction is directly…

Q: The half life for Carbon-14 is 5730 years. Calculate the amount of time it would take 60.0 g of…

A:

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

A: The half-life for the radioactive decay of rubidium-87 to strontium-87 t12 = 4.88 × 1010 years There…

Q: 10 The half life for the radioactive decay of rubidium-87 to strontium-87 is 4.88 × 10¹ years.…

A:

Q: Part A The radioactive isotope 133 Xe is used in pulmonary respiratory studies to image the blood…

A: I don't know how much detail you want for this, but the simplestequation to use iswhere τ1/2 is the…

Q: The half-life of Cs-131 is 30.2 years. How much time would it take for a sample to drop to 1.00% of…

A: * cs=3Half life=t12=30.2 yearsfrom this half life we can calculate , rate constant for this…

Q: The half life for the radioactive decay of rubidium-87 to strontium-87 is 4.88 x 10¹0 years. Suppose…

A: t(1/2) = 4.881010 yearsA0 = 1.000 mmolA = 0.326 mmol

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

A: Radioactive decay follows first order kinetics. Half life(t1/2) = 4.88 x 1010 years hu

Q: The half life for the radioactive decay of carbon-14 to nitrogen-14 is 5.73 x 10 years. Suppose…

A: Given that, the half-life (t1/2) for the radioactive decay of carbon-14 to nitrogen-14 is 5.73 * 103…

Q: A radioisotope “X” has a half-life of 2.5 years. Determine (to the nearest 0.1 mg) how much of a…

A: All the radioactive reactions follow first order kinetics . The term half life is defined as the…

Q: The natural abundance of 14C in the earth's atmosphere and all living organisms is approximately…

A: Given, The half-life of C14 =t12= 5730 years The rate constant and half-life are related to each…

Q: In living organisms, C-14 atoms disintegrate at a rate of 15.3 atoms per minute per gram of carbon.…

A: Answer is explained below. Given that, in living organisms C-14 atoms disintigrate at a rate of 15.3…

Q: The half life for the radioactive decay of rubidium-87 to strontium-87 is 4.88 x 1010 years. Suppose…

A: Radioactive decay follows 1st order reaction kinetics. So it follows the equation of 1st order…

Q: isotope of technetium (technetium-99m), has a half-life of 6 hours. A hospital has a sample which…

A: Half life = 6 hoursInitial amount of technetium-99m = 36 mgTime = 12 hours.

Q: K is 3.30 x 10^-2 years ^-1. If the original amount of lead -210 in a sample is 49.4 mg, how much…

A:

Q: Carbon-14 is a radioactive element with a half-life of about 5,730 years. Carbon-14 is said to decay…

A:

Q: Polonium-209, an ax emitter, has a half-life of 102 years. ▼ Part A How many a particles are emitted…

A:

Q: The half life for the radioactive decay of carbon-14 to nitrogen-14 is 5.73x 10^3 years. Suppose…

A:

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.