Radiation Vocabulary

2. nuclear fission reaction in which an alpha particle is emitted
5. the antiparticle of electron, identical to an electron in mass and magnitude, but with a positive charge
7. total number of leptons, in this case electrons adn neutrinos, is conserved
10. lepton with a charge of e
11. total number of baryons, in this case neutrons and protons, is conserved
12. class of nuclei characterized by total numbe rof nucleons and protons
13. nuclear reaction in which a beta particle is emitted
14. lepton with no charge
17. nucleus of a helium atom
18. nuclear reaction in which at least two nuclei form a nucleus with mass larger than either
19. energy required to seperate a system into its consituents; in this case a nucleus into its constituent atoms
20. lepton with charge of electron
21. elapsed time for the decay of one-half a smaple of unstable nuclides

1. subatomic particle composed of three quarks
3. reactant and products of a nuclear decay
4. subatomic particle not composed of quarks
6. lepton with chrage of anti-electron
8. baryon with a charge of +e
9. with any change in mass there is an associated change in energy
15. rate of nuclear decay
16. decay nuclear reaction in which a photon with a wavelenth in the gamma range is emitted
22. nuclear reaction in which at least one daughter nuclide has a mass smaller than the parent