uranium-235

listen to the pronunciation of uranium-235
الإنجليزية - الإنجليزية
An isotope of uranium, used for energy generation and in atomic weapons, containing one hundred and forty-three neutrons. It has a half-life of 7·038×108 years, whereupon it decays into thorium-231
a uranium isotope with mass number 235; capable of sustaining chain reactions
The uranium isotope with mass number 235 and half-life 7.04 × 10 years, fissionable with slow neutrons and capable in a critical mass of sustaining a chain reaction that can proceed explosively with appropriate mechanical arrangements