The part of uranium that’s fissile – when you hit it with a ….

The part of uranium that's fissile - when you hit it with a neutron, it splits in two - is about 0.7%. The reactors we have today are burning that 0.7%.
The part of uranium that’s fissile – when you hit it with a neutron, it splits in two – is about 0.7%. The reactors we have today are burning that 0.7%.