Fission of U-235 on slow neutron bombardment can be represented by

• 92U235 + 3 γ1 → 56Ba143 + 36Kr90
• 92U235 + 0n1 → 56Ba143 + 36Kr90 + 3 0n1
• 92U235 + 0n1 → 56Ba143 + 36Kr90 + 3 0n1 + Q (energy)
• 92U235 + 0n1 → 92U236 + 30n1+ Q (energy)