3. Suppose a sample of carbon-243 has a half-life of 3427 years. How long does it take for 80% of a sample of carbon-243 to decay?

Q: If the amount of a radioactive element decreases from 0.36 g to 90. mg in 22 min, what is its…

A: Half-life (t1/2) is defined as the time required by a substance to reduce to half of its initial…

Q: The half life of an isotope is 43 seconds.  How long does it take 100.00 g of that isotope to decay…

A: Given that  Initially weight of isotope sample = 100.0 gm initially number of atoms of isotope No=…

Q: The half-life of 234U, uranium-234, is 2.52 105 yr. If 98.9% of the uranium in the original sample…

A:

Q: Mercury-210 has a half-life of 10 minutes. How many minutes will it take for a sample of mercury-210…

A: The objective of the question is to find out the total time it will take for a sample of Mercury-210…

Q: Radon-220 undergoes alpha decay with a half-life of 55.6 s. Assumethere are 16,000 atoms present…

A: We will be using the formula which related number of atoms  remaining after a given number of half…

Q: A pure sample of tritium, 3H, was prepared and sealed in a container for a number of years. Tritium…

A:

Q: 4. Iron-59, which is used to diagnose anemia, has a half-life of 45 days. What fraction of it is…

A: we know that,→ Radioactivity phenomena follow first owen                            knnetics.so,…

Q: Technicium-104 has a half-life of 18 minutes.If the initial mass is 100.0g,how much remains after 90…

A:

Q: A sample of Thorium-228 has a half life of 1.9116 years. what percent of thorium 228 remains after…

A: Let the initial amount be A0After the first half-life the amount remaining is

Q: Cobalt-60 has a half-life of 5.3 years. How many half-livesoccur after 21.2 years?

A: Generally, a radioactive decay reaction takes place as a first order reaction.  In a first order…

Q: Radioactive radon-222, found in many homes, is a potential health hazard. The half-life of radon-222…

A: The spontaneous breakdown of the nucleus causes the release of energy and matter from the nucleus,…

Q: Strontium-90 is radioactive and has a half life of 28.8 years. What percentage of a sample would be…

A:

Q: The half-life of tritium is 12.5 years. How much will remain after exactly 100 years if you start…

A:

Q: The half-life of mercury-203 is 46.6 days. What percentage of mercury-203 remains in a sample after…

A:

Q: The isotope of iodine with mass number 128 undergoes beta decay with a half-life of 25.00 minutes.…

A: As the iodine undergo radioactive decay , it obey first order reaction . By using the half life…

Q: The half life of an isotope is 43 seconds. How long does it take 100.0g of that isotope to decay to…

A: Half life = 43 second k = 0.693half life= 0.69343 sec=0.016 s-1

Q: PET scans require fluorine-18, which is produced in a cyclotron and decays with a half-life of 1.83…

A: Given: Half life, T1/2 = 1.83 hrVelocity of transport, v= 60.0 miles/hrfinal Concentration of F-18 =…

Q: 2. The half-life of radon-222 is 3.8 days. How much of a 100 gram sample is left after 15.2 days?

A: Given data contains, The half-life of radon-222 is 3.8 days. Mass of sample left after 15.2 days is…

Q: How long will it take for a 40.0-gram sample of Iodine-131 to decay to 1/16th of its original mass?…

A:

Q: the Cs-131 by life has a half life of 30 years. after 120 years, 2.6 g remain. what is the original…

A:

Q: Radium-223 has a half-life of 11.43 days. How long will it take for 80% of a sample of the said…

A:

Q: Radium-221 has a half life of 30 seconds. How long will it take for 82% of a sample to decay?

A: Half life =30 seconds Decay percentage = 80%

Q: Radioactive radon-222, found in many homes, is a potential health hazard. The half-life of radon-222…

A:

Q: A nuclear powerplant immediately emits 48.01 g of tritium, given its half life of 12.3 yrs.…

A: All natural and artificial radioactive decays follows first order kinetics. The half life of first…

Q: The half-life of thorium-227 is 18.72 days. How many days are required for three-fourths of a given…

A:

Q: Half life iridium 192 is 106.51 days. How many days are required for 60 mg to decay to 7.5 mg

A:

Q: Radioactive Radon-222 gas (222Rn) occurs naturally as a product of uranium decay. The half-life of…

A:

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:

Q: The half-life of radium is 1620 years. If a laboratory has 32 grams of radium, how long will it take…

A: Data

Q: The half-life of cesium-137 is 30.2 yrs. If the initial mass of a sample is 1.00kg, how much will…

A:

Q: Cobalt-60 has a half-life of 5.27 years.  Considering a piece of that radioactive material, which…

A:

Q: Radium has a half-life of 1600 years. How many years does it take for 90% of a given amount of…

A:

Q: Cobalt-58 which is radioactive, has a half-life of 71 days. How

A: Radioactivity follows first order kinetics Hence decay constant (K) and t1/2 (half life ) related as…

Q: A sample of Thorium-228 has a half-life of 1.9116 years. What percent of Thorium-228 remains after…

A: Applying basic concept of radioactivity.

Q: Thorium-227 has a half-life of approximately 19 days. What percentage of an original amount of…

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.