Plutonium is not related to uranium isotopes radioactive decay; plutonium is obtained by nuclear reactions from uranium isotopes only in nuclear reactors.
No, plutonium is a transuranic element:
23892U + n-------23992U-------23993Np + e--------23994Pu + e
Yes, plutonium-239 emits alpha particles by decay.
The only possible product of the alpha decay of 92238U is 90234Th.
The equation for the alpha decay of 233Pu:94233Pu --> 92229U + 24He2+where the alpha particle is represented as a helium nucleus.Note that 233Pu decays by alpha decay with a probability of only 0.12%. The other 99.88% is Beta+ decay.
First off, it's better to be more careful in regards to the word element. What you actually mean is isotope. The difference is subtle, but important. If I had a large rock of Uranium ore that was just mined, you could say I had the element Uranium. However, the element is made up of a certain percentage of isotopes, those being a nucleus that has the same number of protons, 92 in this case, but different numbers of neutrons.Secondly, alpha decay is defined as the spontaneous emission of a helium 4 nucleus from an isotope, so one of your two resulting elements when alpha decay is involved is always going to be helium. The other element is found by simply subtracting 2 from Pu's atomic number, which is 94, giving you the resulting element's atomic number, which is 92, otherwise known as uranium, specifically, the isotope U 234.
If we use uranium-238 as our starter isotope, what happens is that a nuclear decay event happens (in this case an alpha decay) and the U-238 transforms into a daughter isotope thorium (Th-234). The half-life of this transition is 4.5 billion years. Thorium-234 then undergoes a decay. And the process continues until a stable isotope is created as the last daughter of a decay chain. Note that there will be different half lives for the transition events, and the modes of decay will vary depending on what daughter is now the parent in the next decay event. Use the link below to see all the steps. The chart will show the whole chain including the half-life of isotope undergoing decay, the decay mode, and the daughter. Follow along using the keys and the process will reveal itself.
Yes, plutonium-239 emits alpha particles by decay.
The first step is an alpha decay to (guess what!) uranium 235. You can probably take it from there.
Plutonium 238 is an alpha emitter; the decay product is uranium 234.
Plutonium 238 is an alpha emitter; the decay product is uranium 234.
Uranium 238 is transformed in thorium 234 by alpha decay.
Uranium-239 does NOT decay by alpha decay, it decays only by beta and gammadecay.
This is an alpha decay.The half-life of uranium-238 is 4,468.10ex.9 years.
plutonium-239
There are 3 naturally occurring isotopes of Uranium, all decay by alpha to Thorium:238U --> 234Th + 4He235U --> 231Th + 4He234U --> 230Th + 4He
The only possible product of the alpha decay of 92238U is 90234Th.
Alpha decay
It is thorium 234.