Nuclear Energy

2. the central and most important part of an object movement, or group, forming the basis for its activity and growth.
5. the spontaneous emission of radiation in the form of particles.
6. a count of the total number of protons and neutron in an atom's nucleus.
7. the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay.
11. Subatomic particle that has no charge.
12. a stable subatomic particle that has a positive charge equal to the electron.
13. A helium nucleus emitted by some radioactive substances, originally regarded as a ray.
14. the number of protons

1. a fast-moving electron emitted by radioactive decay of substances.
3. also known as gamma rays, is a form of electromagnetic radiation.
4. a reaction in which the nucleus of an atom splits into two or more smaller nuclei.
8. a reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release for energy.
9. a chemical reaction or other process in which the product themselves promote or spread the reaction, which under certain conditions may accelerate dramatically.
10. an atom of the same element that has a different number of neutrons in its nucleus.