Basically, an isotope is the same element but with a different mass. Unprocessed uranium is mostly uranium-238. It only ...

More common than gold, uranium is abundant on Earth. But less than one percent of the naturally occurring element is useful for nuclear power.

When Israeli aircraft recently struck a uranium-enrichment complex in the nation, Iran could have been days away from ...

99.27 per cent of it is uranium-238, which has 92 protons and 146 neutrons. Only 0.72 per cent of it is uranium-235 with 92 protons and 143 neutrons (the remaining 0.01 per cent are other isotopes).

Uranium has civilian uses that have nothing to do with weapons. For a bomb, the uranium needs to be a lot more concentrated.

Not that anyone asked, but uranium enrichment is certainly a newsworthy topic where a little science might be helpful. Here's ...

When an atom breaks apart, it gives out energy and more neutrons, which can then split other atoms. Get enough atoms splitting and you have the chain reaction needed for a bomb blast ...

Destroying Iran's stores of enriched uranium would bring danger for people nearby but not trigger another Chernobyl.

Because uranium-235 is a little lighter than uranium-238, it moves outward more slowly when spun, and the two isotopes separate. It’s sort of like how a salad spinner separates water from lettuce.

The difference between uranium-238 and uranium-235. When we dig uranium out of the ground, 99.27% of it is uranium-238, ... That's because of the two main uranium isotopes, ...

Because uranium-235 is a little lighter than uranium-238, it moves outward more slowly when spun, and the two isotopes separate. It’s sort of like how a salad spinner separates water from lettuce.

Because uranium-235 is a little lighter than uranium-238, it moves outward more slowly when spun, and the two isotopes separate. It’s sort of like how a salad spinner separates water from lettuce.