How long would it take for plutonium to decay to one eighth of its original activity?
For plutonium (or any other radionuclide) to decay to one eighth of its original activity, it will take 3 half-lives of the material. In one half-life, half is gone. Half will be left. In another half-life, half of the half that was left is gone, and one quarter will be left. In a third half-life, half the one quarter will be left, and that's one eighth of the original. In the case of plutonium, there are a number of isotopes of this highly radioactive stuff. The isotope 239Pu, which is commonly used in nuclear weapons, has a half-life of 2.41 x 104 years. That's 24,100 years. For 239Pu to decay to 1/8 th of its original amount, it will take 3 time the half-life, which is 7.23 x 104 years, or 72,300 years. And yes, that is a long time. A very long time....
Each isotope of plutonium has its own decay scheme. Plutonium-239 is the most widely used isotope, and it undergoes alpha decay into uranium-235 with a half-life of 2.41 x 104 years (24,100 years). A link is provided to the Wikipedia article on plutonium.
Plutonium is not related to uranium isotopes radioactive decay; plutonium is obtained by nuclear reactions from uranium isotopes only in nuclear reactors.
Pu 238 will decay to Uranium 234 after alpha decay occurs
Plutonium is warm; the cause is the heat released by radioactive decay.
Plutonium 238 is a strong alpha emitter; the decay product is uranium 234. The equation for the alpha decay of 238Pu is:94238Pu --> 92234U + 24He representing the alpha particle as a helium nucleus. Plutonium-238 can also undergo fission, but there is no standard equation for this.
After 7 minutes a 53 g sample of plutonium decays to 36 g how long will it take for the sample to decay to 13 of its original amount?
It will take 25.0898 minutes, approx.
The isotope plutonium 224 don't exist.
Yes, plutonium-239 emits alpha particles by decay.
No it does not. There are various types (isotopes) of plutonium. Plutonium 238, the weapons grade material, has a half life of 88 years. Meaning after 88 years half of the material has transforms into another element through radioactive decay. Plutonium-240 has a half life of ~80 Million years. But eventually all types of plutonium will decay into other elements. All radioactive elements will eventually decay into non-radioactive atoms given enough time.
The equation for the alpha decay of 239Pu is:94239Pu --> 92235U + 24He where 24He represents the alpha particle, which is a Helium nucleus. Plutonium-239 also decays by fission.
Plutonium-238 decomposes by emitting a particle what is the other product of this decomposition 238 pu 94?
Plutonium 238 is an alpha emitter; the decay product is uranium 234.
- Plutonium-238: from the beta double-decay of U-238 - Plutonium-239: from a nuclear reaction of U-238 with neutrons (neutrons from a spontaneous fission) - Plutonium-240: a radioactive decay product of Pu-244 - Plutonium-244: it is considered a primordial isotope for the Earth All these isotopes (of natural origin) exist in uranium ores in infinitesimal but today detectable concentrations.
No, plutonium is a transuranic element: 23892U + n-------23992U-------23993Np + e--------23994Pu + e
The half life is different for each isotope of plutonium; name the isotope for a calculation.
The first step is an alpha decay to (guess what!) uranium 235. You can probably take it from there.
A very unlikely type of decay. Plutonium is found as isotopes with atomic weights in the range 238 to 244. Your equation seems to involve plutonium with another 39-78 neutrons! Making it an extremely unlikely (if not impossible) isotope. A very unlikely type of decay. Plutonium is found as isotopes with atomic weights in the range 238 to 244. Your equation seems to involve plutonium with another 39-78 neutrons! Making it an extremely unlikely (if… Read More
- Plutonium can react with other elements to form chemical compounds - Plutonium can be transformed in other elements by nuclear reactions or radioactive decay
Explain what percentage of the parent element will decay into the daughter element through the process of radioactive decay during each of the first 3 half lives?
During the first half life, half of the radioactive substance decays. During the second half life, half of what is left decays; since this is half of the original amount, a quarter of the original radioactive material decays away, and a quarter remains. During the third half life, half of what is left decays; since this is a quarter of the original amount, an eighth of the original radioactive material decays away, and an eighth… Read More
Beta decay of uranium produces neptunium element and the beta decay of neptunium produces plutonium.
Uranium-238 captures a neutron becoming Uranium-239. Uranium-239 decays via beta decay becoming Neptunium-239. Neptunium-239 decays via beta decay becoming Plutonium-239.
94Pu244 -----> 2He4 + 92U240
Plutonium 237 has a half-life of 45,2 days; this isotope is a emitter of electrons and gamma rays.
What is the other product of this decomposition when Plutonium-238 decomposes by emitting a particle?
Plutonium 238 is an alpha emitter; the decay product is uranium 234.
A very small amount of plutonium is found in nature. The majority of it is produced artificially. The majority of plutonium is made in nuclear reactors: uranium-238 captures a neutron, becoming uranium-239 uranium-239 undergoes beta decay, becoming neptunium-239 (halflife 23.5 minutes) neptunium-239 undergoes beta decay, becoming plutonium-239 (halflife 2.33 days) plutonium is then chemically separated from the remaining uranium, neptunium, etc.
Enriched Uranium and following it is Plutonium
The daughter isotope is uranium-235.
The daughter isotope of Pu-239 is U-235.
Chemical activity is simply a chemical reaction, while radioactive decay is not a reaction it happens within an atom though: alpha decay, neutron decay, beta minus decay, positron decay, electron capture, isomerical transition, spontanium fission, or proton decay. Proton decay is theoretical and has never been observed.
How many half lives would be necessary for a sample of parent isotopes to decay to the point that only one fourth of the sample is composed of parent isotopes?
I would take two half-lives for a radionuclide to decay to one fourth its original activity. In one half-life, it decays to one half. In the next half-life, it decays to one half of that one half, i.e. one quarter. In the next half life, it decays to one half of the one half of the one half, i.e. one eighth.
239Pu --> 235U + 4He
The reaction is: Pu-238-------------U-234 + alpha
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.
9987.3844 or 9,990
How do we obtain Plutonium? Plutonium is made from uranium and essentially is the byproduct in the nuclear reactors where an isotope of Uranium (U238) is bombarded neutron radiation. Through this process the Uranium (U238) then may gain a neutron becoming another isotope of Uranium (U239). This isotope which is unstable due to the unbalance in the neutron to proton ratio then goes through beta decay and forms neptunium (Np239). This (Np329) then once again… Read More
Difficult to copy the decay chain in this windows. A suggestion: - Go to the site http://22.214.171.124/downloads/raddec.html - Copy the free software RadDecay v.4.1. zip - Install the software in your PC - Search the data for plutonium 246; it's easy !
When elements such as uranium and plutonium decay do they form different elements chemical reactions or larger compounds?
When an element "decays", it forms a different element. This is the definition of "decay" when referring to radioactive elements.
Plutonium in natural uranium ore deposits come from the spontaneous fission of uranium. The spontaneous fission is a very rare phenomenon; also plutonium is radioactive and support itself a radioactive decay and a spontaneous fission.
Plutonium-241 decays by both beta- and alpha decay. For beta- decay the equation is ... 94241Pu -> 95241Am + e- + v-e Not asked but answered for completeness sake, for alpha decay the equation is ... 94241Pu -> 92237U + 24He2+
Each isotope has another half life.
From these isotopes decay products are obtained and also ionizing radiations.
What is the half life of an isotope that decays to 50 percent of its original activity on 40.9 hours?
If it takes 40.9 hours for 50% of the original activity to decay, then the half-life is 40.9 hours. That is what half-life means: the length of time it takes for 50% of the activity to decay. What may be confusing to some is that, in the second half-life, i.e. the next 40.9 hours, half of the half, i.e. 25% will decay, and then 12.5%, and so on and so forth. The equation for half-life… Read More
The rate of decay (activity) of a radioactive isotope is proportional to the number of atoms of the isotope present.
The isotopes created are uranium-230 and the alpha particle itself (helium-4).
It would take hundreds of thousands of years for the most common isotope being synthesized, which is plutonium-239. Hundreds of tons have been produced for nuclear weapons. The half-life of plutonium-239 is 24110 years, and it is only "lost" if it fissions in large nuclear reactors, where currently more is being produced than is used up. Decay is not a practical consideration because of the long time frame that this entails. *Smaller power generators utilize… Read More
218 147 84 Po --> 48 N + 84 (Alpha symbol) Be aware that this decay process could be extremely harmful to those around it. Thanks for asking though, fancy a date?? ;)
Neptunium is a solid metal at room temperature, but undergoes beta decay becoming plutonium within a few days.
decay per unit of time
Plutonium is used to make nuclear weapons and nuclear fuel. Plutonium was first produced by Glenn T. Seaborg, Joseph W. Kennedy, Edward M. McMillan and Arthur C. Wohl by bombarding an isotope of uranium, uranium-238, with deuterons that had been accelerated in a device called a cyclotron. This created neptunium-238 and two free neutrons. Neptunium-238 has a half-life of 2.1 days and decays into plutonium-238 through beta decay. Although they conducted their work at the… Read More