What is the half-life of polonium 214?
164.3 μs
The radioactive isotope of polonium with relative atomic mass 213.995186 and half-life of 164.3 μs.
What is the half-life of polonium 214 in seconds?
164 seconds
Polonium-214 has a relatively short half-life of 164 seconds.
What is the half-life of polonium 211?
0.5 s
You will notice that on the right side, the polonium-211 is selected to be the parent nucleus. It has a known half-life of 0.5 s or 500 ms, seen on the chart at the top.
What is the half-life of polonium 221?
It is an alpha emitter with a half-life of 138.39 days. A milligram emits as many alpha particles as 5 g of radium. The energy released by its decay is so large (140W/g) that a capsule containing about half a gram reaches a temperature above 500C.
What’s the half-life of polonium 204?
List of isotopes
| Nuclide | Z | Half-life |
|---|---|---|
| Excitation energy | ||
| 204Po | 84 | 3.53(2) h |
| 205Po | 84 | 1.66(2) h |
| 205m1Po | 143.166(17) keV | 310(60) ns |
What is the half-life of polonium-210?
138 days
Po-210 is a product of the radioactive decay of uranium-238, which decays to radon-222 and then to polonium. Polonium 210 has a half-life of 138 days. Po-210 emits alpha particles, which carry high amounts of energy that can damage or destroy genetic material in cells inside the body.
What is the half-life of polonium 215?
1.781 ms
The radioactive isotope of polonium with relative atomic mass 214.999415 and half-life of 1.781 ms.
What is the half-life of plutonium?
24,100 years
The different isotopes have different “half-lives” – the time it takes to lose half of its radioactivity. Pu-239 has a half-life of 24,100 years and Pu-241’s half-life is 14.4 years.
What is the half-life of uranium 238?
about 4.5 billion years
The half-life of uranium-238 is about 4.5 billion years, uranium-235 about 700 million years, and uranium-234 about 25 thousand years.