The half life of the most important isotope (239Pu) is 2,41.104 years.
The isotope Pu-239 does. (It's actually about 24,100 years). Other isotopes of plutonium have a different half-life, and these vary (for the more common isotopes) from a few years to millions of years. A link can be found below.
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 decay of plutonium-240 has a half-life of about 656 million years. To go from 36 grams to 12 grams would require two half-lives, so it would take approximately 1.3 billion years for 36 grams of plutonium-240 to decay to 12 grams.
depends on the type of waste, that determines its halflife. some waste will be safe in just a few decades, other types will take millions of years. if they would reprocess reactor nuclear waste so that uranium, plutonium, and other transuranics were recycled as fuel instead of staying in the waste; the remaining waste could be stored in a repository for 100 to 200 years and be safe after that.
The half life of the isotope 239Pu (the most known plutonium isotope) is 24,200 years; 43 years is practically nothing in comparison is 24,200 years so you would still have 100 grams.
The half life of plutonium-239 is 2,41.10e+4 years.
Plutonium has 20 isotopes; each isotope has another half-life. Please read: http://en.wikipedia.org/wiki/Isotopes_of_plutonium.
The half life of plutonium-235 is 25,3(5) minutes.
Plutonium-239, a common isotope of plutonium, has a half-life of about 24,100 years. To calculate the number of half-lives, divide the total time by the half-life. For example, in 48,200 years, there would be 2 half-lives.
The half-life of plutonium-241 is about 14 years. This means that it takes approximately 14 years for half of a sample of plutonium-241 to decay into another element.
Not plutonium, but iodine-131 !!The half life of 131I is 8,0197 days.
A half-life is simply the amount of time it takes for a substance to reduce itself by half. In this case, every 14.2 days half of plutonium-32 is converted into something else. All you have to do is divide 99.4 by 14.2, which is exactly 7. About 0.78% of the plutonium will be remaining at this time.
The half life is different for each isotope of plutonium; name the isotope for a calculation.
No, it does not. The longest lived isotope, plutonium-244, has a half life of 80,800,000 years.
The isotope Pu-239 does. (It's actually about 24,100 years). Other isotopes of plutonium have a different half-life, and these vary (for the more common isotopes) from a few years to millions of years. A link can be found below.
Plutonium-239, a common isotope used in nuclear reactors and weapons, has a half-life of about 24,100 years. This means it will remain radioactive for many thousands of years. The radiation emitted by plutonium can pose significant health risks, and proper precautions must be taken when handling or storing it.
Plutonium-238 has a half-life of 87.7 years and is used as a heat source in radioisotope thermoelectric generators, while plutonium-240 has a half-life of 6,560 years and is generated as a byproduct in nuclear reactors. Plutonium-238 is highly radioactive and useful for power generation in space missions, while plutonium-240 is less desirable due to its high rate of spontaneous fission, which can complicate nuclear weapon design.