WEEK12 - Topic 14

Nuclear Chemistry

 

1: Radioactivity

2: Half-life of radioactive decay

3: Alpha, beta particles and gamma rays

 

Radioactivity, Half-life of radioactive decay, Alpha, beta particles and gamma rays & balancing nuclear Equations 

 

Penetrating properties of Radiation

 

 

 

 

Fusion, Fission and Nuclear chemistry applications

Nuclear fission 

-A heavy nuclide struck by a neutron spilts into two or more intermediate-sized fragments. The fragments are called fission product

-The mass of the nuclides ranges from about 70-160 amu

-Two or more neutrons are produced from the fission of each atom

-Large quantities of energy are produced as a result of the conversion of a small amount of mass into energy

-Many nuclides produced are radioactive and continue to decay until they reach a stable nucleus

Nuclear fusion

- The process of uniting the nuclei of two light elements to form one heavier nucleus

- The masses of the two nuclei that fuse into a single nucleus are greater than the mass of the nucleus formed by their fusion. The difference in mass produces the great amount of energy released