Nuclear Energy

5. A weapon that releases massive energy through uncontrolled nuclear fission
7. High amounts of radiation causes these in plants
8. A stable isotope of hydrogen with one proton and one neutron in its nucleus
10. The site of a catastrophic nuclear reactor explosion in 1986, releasing massive radiation
11. Radioactive waste containing elements heavier than uranium, often from nuclear reactors
13. A high-density ball of this radioactive metal is placed inside atomic bombs

1. The joining of two light atomic nuclei to form a heavier nucleus, releasing energy
2. This country runs on 80% nuclear energy
3. Tubes containing nuclear fuel pellets, usually uranium, used to sustain fission in a reactor
4. Devices in a nuclear reactor that absorb neutrons to regulate or stop the chain reaction
6. A facility that uses controlled nuclear fission to generate electricity
9. An unstable isotope formed when Uranium-235 absorbs a neutron before fissioning
10. The minimum amount of fissile material needed to maintain a nuclear chain reaction
12. The splitting of a heavy atomic nucleus into smaller parts, releasing energy.