Table of Contents
- 1 What percentage of iodine 131 remains in a sample after 32 days?
- 2 What is the half life of Iodine 131 in hours?
- 3 How long will it take for 50\% of a sample of iodine-131 to decay?
- 4 What fraction of Iodine 131 decays each second the half-life is 8 days?
- 5 How long does it take for iodine decay to occur?
- 6 How long does 1/8th of a radioactive sample remain in the lab?
What percentage of iodine 131 remains in a sample after 32 days?
Explanation: 32 days means 4 half lives since one half life is 8 days. That means it will be halved 4 times… so the ratio between the initial amount and the amount after 32 days will be 0.54 .
What is the half life of Iodine 131 in hours?
Iodine-131
| General | |
|---|---|
| Half-life | 8.0197 days |
| Isotope mass | 130.9061246(12) u |
| Excess energy | 971 keV |
| Isotopes of iodine Complete table of nuclides |
What is the half-life of iodine-131 after 32 days?
8.07 days
1: The half-life of iodine-131 is eight days. Half of a given sample of iodine-131 decays after each eight-day time period elapses….10.3: Half-Life.
| Nuclide | Half-Life (t1/2) | Decay Mode |
|---|---|---|
| Hydrogen-3 | 12.26 years | β− |
| Iodine-131 | 8.07 days | β− |
| Nitrogen-16 | 7.2 seconds | β− |
| Phosphorus-32 | 14.3 days | β− |
What percentage of a sample would remain after 8 half lives?
As an example, iodine-131 is a radioisotope with a half-life of 8 days. It decays by beta particle emission into xenon-131. After eight days have passed, half of the atoms of any sample of iodine-131 will have decayed, and the sample will now be 50\% iodine-131 and 50\% xenon-131.
How long will it take for 50\% of a sample of iodine-131 to decay?
eight days
As an example, iodine-131 is a radioisotope with a half-life of 8 days. It decays by beta particle emission into xenon-131. After eight days have passed, half of the atoms of any sample of iodine-131 will have decayed, and the sample will now be 50\% iodine-131 and 50\% xenon-131.
What fraction of Iodine 131 decays each second the half-life is 8 days?
1: The half-life of iodine-131 is eight days. Half of a given sample of iodine-131 decays after each eight-day time period elapses….10.3: Half-Life.
| Nuclide | Half-Life (t1/2) | Decay Mode |
|---|---|---|
| Hydrogen-3 | 12.26 years | β− |
| Iodine-131 | 8.07 days | β− |
| Nitrogen-16 | 7.2 seconds | β− |
| Phosphorus-32 | 14.3 days | β− |
What is the half life of iodine-131?
The half-life of Iodine-131 is approximately 8 days. What is the amount of Iodine-131 left from a 35 gram sample after 32 days? | Socratic The half-life of Iodine-131 is approximately 8 days.
What is the amount of iodine-131 left from a 35 gram sample?
The half-life of Iodine-131 is approximately 8 days. What is the amount of Iodine-131 left from a 35 gram sample after 32 days? 32 days means 4 half lives since one half life is 8 days. That means it will be halved 4 times… so the ratio between the initial amount and the amount after 32 days will be 0.54. There will be 2.2 grams left.
How long does it take for iodine decay to occur?
The releases in the environment occured 1 to 3 days after the tsunami and reactors shut-downs. Iodine-133 had already practically vanished at the time of the first releases. Iodine-132 that closely follows tellurium decay disappears within three weeks. At the end of these seven weeks, only remains Iodine-131 that has decreased 38 times.
How long does 1/8th of a radioactive sample remain in the lab?
3.82 days x 4 = 15.3 days Problem #17:One-eighth of a radioactive sample remains 9 days after it was brought into the lab. What is the half-life?