Answered: ong periods of time. Natural thorium is…

ong periods of time. Natural thorium is almost 100 % 232^Th, with half life of 1.405*10^10y. If an average lateen mantle contains 350mg of thorium what is its activity (in Bq)

Related questions

Q: A particular radioactive material was weighed exactly 1 year ago, showing a mass of 200 g. If the…

A: Given: Mo=200 gM=23.0 gt=1 year = 365 days

Q: A certain radioactive nuclide decays with a disintegration constant of 0.0256 h1 (a) Calculate the…

A: Given(s): Decay constant, λ=0.0256 h-1 Require: Half-life, t12=? Fraction of sample left after,…

Q: A 416 g sample of sodium-24 decays to 13.0 g of sodium-24 within 60.0 hours. What is the half-life…

A: Given data: The initial quantity is N0=416 g. Quantity after decay is N(t)=13.0 g. Time elapsed is…

Q: Consider a radioactive decay where the parent nucleus (1) decays into a daughter nucleus (2) which…

Q: radioactive

Q: 09:1 g of medium is reduced by 2.1 mg in 5 years by a-decay. Calculate the half life period of…

A: Given The initial mass of radiation Ao = 1g Mass of radiation left after 5 years (A) = 2.1 mg =…

Q: If there are 20 mmol of the radioactive isotope 3H (half-life 12 years) at t = 0, how much 3H remain…

A: Initial concentration of radioactive element is Half-life time is Find:(a) Concentration of at…

Q: If the age of Earth is 4.6 billion years, what should be the ratio of 206P6/238U in a…

Q: X 26. MeV) for 'Be, for which the atomic mass is 9.01219 amu. Particle masses in amu are: proton =…

A: Given a Be nuclei with atomic mass= 9.01219 amu mass of proton=…

Q: The half-life of 231Pa is 3.25×104 years. How much of an initial 10.41 μg sample remains after…

A: Let the half life time of the sample is denoted by th. The formula for the disintegration constant…

Q: The half life for the decay of carbon-14 is 5.73*10^3 years. Suppose the activity due to the…

Q: (Hand by written ans.)Mantles for gas lanterns contain thorium, because it forms an oxide that can…

Q: Complete the following reaction for radioactiv alpha decay, down alues of the atomic mass A and the…

A: Solution. a). The alpha particle has atomic mass z =2 and atomic weight 4. When uranium decay by…

Q: Consider an initial amount of 708g of radioactive material with half-life h=3.2hdays. Use a…

A: Write the expression of radioactive degradation. N=N0e-t/t1/2

Q: The air in some caves includes a significant amount of radon gas, which can lead to lung cancer if…

Q: An 10 g sample of a radioactive element takes 5432.6 years to reduce into 1 g. Calculate the…

A: Radioactive decay takes place when an unstable nucleus becomes stable. The instability arises due to…

Q: Samples from a fossil show C^14 activity of 0.29 Bq. That sample contains 12 grams of C^12, If the…

Q: the sample must be due to radioactive decay. With all of this in mind, if we find that a rock…

A: This problem can be solved using radioactive decay concept.

Q: If the unit for atomic mass were defined so that the mass of 1H were exactly 1.000 000 u, what would…

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: The half-life of a radiotracer is 3 hr. (i) Determine the decay constant of the radiotracer, (ii)…

A: Given, half life of radio tracker is, t12= 3hr i) So decay constant is, λ = ln2t12=ln23hr=0.23 hr-1…

Q: A living specimen in equilibrium with the atmosphere contains one atom of 14C (half- life = 5 730…

A: Given: Half life time,t12=5730yr=5730×3.1536×107sMass of archeological sample of…

Q: 40.12 A sample of material contains 2.00 x 1015 atoms. The sample initially consists entirely of a…

A: Let N denote the number of atoms of the radioactive substance A. Let t1/2 denote the half-life time…

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

Q: A radioactive sample contains 1.55g of of an isotope with half a life of 3.8 days. How much of the…

A: Given data: Original amount of substance (N0) = 1.55 g Half life (T1/2) = 3.8 days Time (t) = 11.4…

Q: Plutonium has a decay constant of 2.75 x 10-16 s-1. Suppose we had a 1.00 g sample what will be its…

A: Radioactive decay is the process by which unstable nuclei spontaneously lose energy to become…

Q: P239u is a nuclear waste byproduct with a half-life of 24,000 y. What fraction of P239u present…

A: The formula for remaining nuclei in terms of half life N=N012tt1/2

Q: A radioactive substance initially contains 20000 thorium Th230 isotype. How many of this radioactive…

Q: an life of 7.2 days ay. Subsequently,

A: In general the radioactive elements decay into another radioactive element. The first one is called…

Q: Potassium-argon dating is used to measure the age of rocks formed from cooled lava by determining…

A: The radioactive dating of rocks formed from cooled lava is determined by using parallel decay of…

Q: Cadmium-107 has a half life of 6.52 hours. If you start off with sample which has an activity of 1.0…

A: The reactivity of the sample after time t is given by:

Q: A particular rock is thought to be 260 million years old. If it contains 3.70 mg of 238U, how much…

A: The initial amount of substance is,

Q: The half-life of 60?? is 5.27 years. The activity of a 60?? is 3.50 × 109 Bq. What is the mass of…

Q: The You-Yangs are a series of rocky granite ridges to the south-west of Melbourne, whose rocks…

Q: If the age of Earth is 4.6 billion years, what should be the ratio of 206Pb/238U in a…

A: Half-life of a radioactive element is the time in which the amount of the substance becomes just…

Question

Mantles for gas lanterns contain thorium because it forms an oxide that can survive being heated to incandescence for long periods of time. Natural thorium is almost 100 % 232^Th, with half life of 1.405*10^10y. If an average lateen mantle contains 350mg of thorium what is its activity (in Bq)

Expert Solution