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Can you feel it?

Uranium-235 is the most awesome of natural nuclides. It is the only naturally occurring fissile material. Although it makes up only 0.7% of natural uranium, it can be used to unlock the vast amounts of energy available from uranium-238 and thorium via a technology called breeder reactors. The half life of uranium-235 is 700 million years. It is slightly[citation needed] more radioactive than uranium-238.

Fission of uranium-235 is the source of around 10% [1] of the world's production of electricity, and around 6%[citation needed] of total energy production.

It is also one of two materials that can be practically used for nuclear bombs.


  1. World Nuclear Performance Report 2016, World Nuclear Association