nuclear chemistry
DESCRIPTION
Nuclear Chemistry. Fission. Fission : Division of a heavy nucleus into two or more smaller nuclei. (Used in weapons and power plants). Fusion. Fusion : Combining two light nuclei . Releases more energy than fission. (Used in weapons. Still working on power plants). Alpha - PowerPoint PPT PresentationTRANSCRIPT
Nuclear Chemistry
FissionFission: Division of a heavy nucleus into two or more smaller nuclei.
(Used in weapons and power plants)
Fusion
Fusion: Combining two light nuclei. Releases more energy than fission.(Used in weapons. Still working on power plants)
Alpha • Helium Nucleus• Positive charge• Easily stopped• Mass # of atom:-4 Atomic # of atom: - 2
Beta• Electron (- charge)
• Mass # of atom same, atomic # of atom + 1
0-1 e
Gamma• High energy electromag. Wave• Mass # of atom same Atomic # of atom same
00 Y
Balancing Nuclear Equations
The Mass #s and Atomic #s have to be equal on both sides of the equation.
23490 Th238
92 U
Beta Equations
13154 Xe
0-1e
12751Xe + + 00 Y
Nuclear Radiation – particles and electromagnetic waves that are flung at high speeds from nucleus.
Q: Why does it happen?A: Unstable nuclei!Q: Why unstable?A: # of neutrons
Rutherford’s Gold Foil Experiment• Fired particles at gold foil• Some particles bounced back• Why? Because of the dense central nucleus
Superhero!Your job is to create a superhero that can block that type of radiation.
Include all of the information in your folder on your poster.