NUCLEAR CHEMISTRY
by Kylene Bajo
1. Radioactive Decay
1.1. the process by which on unstable radioactive nucleus emits radiation forming a nucleus of new composition
1.1.1. Isotopes
1.1.1.1. are atoms of the same elements having a different number of neutron
1.1.2. Radioactive Isotope
1.1.2.1. also called as "radio isotope"
1.1.2.2. uneven larger number of radio isotope call "artificial isotope" have been produced in the laboratory
2. Alpha Decay/Emission
2.1. decay of a nucleus by emitting an alpha particle
3. Beta Decay/Emission
3.1. decay of a nucleus by emitting beta particle
4. Positron Emission
4.1. decay of nucleus by emitting a positron or beta particle
5. Gamma Emission
5.1. the decay of a nucleus by emitting gamma radiation
6. Archeological Dating
6.1. use the half-life of Carbon-14 to determine the age of carbon containing materials derived from plants or animals
7. PET Scan
7.1. use radioisotopes that emit positron when the nucleus decays. Once formed a positron combines with electron to form 2 gamma rays which create a scan of an organ
8. Nuclear Fusion
8.1. joining together of two light nuclei to form a larger nucleus
8.2. nuclear reaction that takes place in the sun
9. Chemical Reaction
9.1. occurs when bonds are broken and formed
9.2. atoms keep same identity although this might gain, loose, share electrons
10. Types of Radiation
10.1. Alpha Particle
10.1.1. high energy particle that contains 2 protons and 2 neutrons
10.2. Beta Paticle
10.2.1. a high electron
10.2.2. is converted to a proton and an electron
10.3. Positron
10.3.1. called "anti-particle" of a beta particle since their changes are different but their masses are the same
10.4. Gamma Rays
10.4.1. high energy radiation released from a radioactive nucleus
11. Nuclear Radiation
11.1. energy particles or rays that are given off from a radioactive element
12. Nuclear Reaction
12.1. occurs when nuclei combine, split and emits radiation
13. Half-life
13.1. the half-life of radioactive isotope is the time it takes for one half of the sample to decay
14. Unit in Measuring the Radioactivity in a Sample
14.1. Curie
14.1.1. Milicurie
14.1.1.1. Microcurie