>Netanyahu claims Iran's uranium enrichment to 20 percent is bid to develop nukes
dont nuclear devices require at least 80% Purity enriched uranium or better?
or is that just the "Good stuff"?
https://www.bing.com/search?form=MOZLBR&pc=MOZI&q=what+percent+uranium+enrichement+for+nuclear+bomb%3F
Nuclear weapons typically contain uranium enriched to 80 percent U-235 or more, which is known as weapon-grade uranium. Nuclear weapons can also can be powered with plutonium, but Iran would need to irradiate uranium fuel in its Arak nuclear reactor and build an additional facility to separate plutonium from the spent fuel to take that route.
old article!
https://phys.org/news/2019-06-nuclear-weapons-iran-uranium-enrichment.html#:~:text=Nuclear%20weapons%20typically%20contain%20uranium%20enriched%20to%2080,from%20the%20spent%20fuel%20to%20take%20that%20route.
June 19, 2019
Understanding nuclear weapons and Iran's uranium enrichment program
Iranian leaders have threatened to withdraw from a 2015 agreement that limits their nation's nuclear activities. Under the deal, the United States and five other world powers lifted economic sanctions they had imposed to prevent Iran from developing nuclear weapons. But President Trump removed the U.S. from the deal in 2018 and reimposed sanctions.
Miles Pomper, a senior fellow at the Middlebury Institute of International Studies at Monterey, explains one of the key activities that the Iran deal covers—uranium enrichment—and why it is central to both peaceful nuclear energy programs and building nuclear weapons.
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What is uranium enrichment?
Uranium can fuel nuclear power plants and nuclear bombs because some of its isotopes, or atomic forms, are fissile: Their atoms can be easily split to release energy.
Freshly mined uranium contains more than 99 percent of an isotope called uranium 238, which is not fissile, plus a tiny fraction of uranium 235, which is fissile. Enrichment is an industrial process to increase the proportion of U-235. It's usually done by passing uranium gas through devices called centrifuges, which rotate at high speeds. This process sifts out U-235, which is lighter than U-238.
Commercial nuclear power plants run on low-enriched uranium fuel, which contains 3-5 percent U-235. Further processing can produce highly enriched uranium, which contains more than 20 percent U-235.
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How is enriching uranium connected to making nuclear weapons?
The same technology is used to enrich uranium for either nuclear power or nuclear weapons. Nuclear weapons typically contain uranium enriched to 80 percent U-235 or more, which is known as weapon-grade uranium.
Nuclear weapons can also can be powered with plutonium, but Iran would need to irradiate uranium fuel in its Arak nuclear reactor and build an additional facility to separate plutonium from the spent fuel to take that route. Currently its uranium work poses a more immediate risk.
Both nuclear power and nuclear weapons rely on nuclear chain reactions to release energy, but in different ways. A commercial nuclear power plant uses low-enriched uranium fuel and various design elements to generate a slow nuclear chain reaction that produces a constant stream of energy. In a nuclear weapon, specially designed high explosives cram together enough weapon-grade uranium or plutonium to produce an extremely fast chain reaction that generates an explosion.