Chemistry Vocab

4. A quantity used to measure the stability of a radioisotope.
6. The emission of elementary particles by some atoms when their unstable nuclei disintegrate
7. radioactive isotopes of an element.
10. force: holds particles together in the atomic nucleus and the force that holds quarks together in elementary particles.
11. particle: a helium nucleus emitted by some radioactive substances, originally regarded as a ray.
12. is the splitting of a heavy nucleus into lighter nuclei and fusion is the combining of nuclei to form a bigger and heavier nucleus
13. Force: The fundamental force that acts between leptons and is involved in the decay of hadrons.
14. A Nuclear particle with the mass of an electron but opposite charge.
15. either a nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into smaller parts (lighter nuclei).

1. is an atomic species characterized by the specific constitution of its nucleus
2. is one of the particles that makes up the atomic nucleus.
3. The changing of one chemical element into another.
5. particle: a fast-moving electron emitted by radioactive decay of substances.
7. Energy sent out in the form of particles or waves.
8. the production and discharge of something, especially gas or radiation.
9. ray: penetrating electromagnetic radiation of a kind arising from the radioactive decay of atomic nuclei.