Nuclear fission is a process whereby a nucleus splits in half. Only a select number of radioactive elements are fissionable. The chain reaction and the concept of critical mass are also discussed. Duration: 9:48.

# 5.7 Nuclear Fission--The Splitting of Atomic Nuclei

# Chapter 5: The Atomic Nucleus

## Chapter 5: The Atomic Nucleus

- 5.1 Radioactivity--the Disintegration of the Atomic Nucleus
- 5.2 Radioactivity Is a Natural Phenomenon
- 5.3 Radioactivity Results from an Imbalance of Forces
- 5.4 Radioactive Elements Transmute to Different Elements
- 5.5 The Shorter the Half-Life, the Greater the Radioactivity
- 5.6 Isotopic Dating Measures the Ages of Materials
- 5.7 Nuclear Fission--The Splitting of Atomic Nuclei
- 5.8 The Mass-Energy Relationship: E = mc(2)
- 5.9 Nuclear Fusion--The Combining of Atomic Nuclei

Nuclear Fission for Electricity

The heat emitted from the nuclear fission of a U-235 enriched sample of uranium is hot enough to boil water. The steam from this water can be used to turn a turbine to generate electricity. The basic design of an electricity producing nuclear power plant is described. Duration: 4:51.

Benefits and Risks of Fission Power

Energy from nuclear fission is beneficial in that it produces few air pollutants. Nuclear fission reactions, however, do generate significant amounts of radioactive wastes. The nature of these radioactive wastes are discussed. Duration: 3:31.

**Click on the following graphic to learn about the more recent "Thorium Reactors"**

Watch these additional videos to complete this tutorial.

## Table of Videos

- Chapter 5: The Atomic Nucleus
- 5.1 Radioactivity--the Disintegration of the Atomic Nucleus
- 5.2 Radioactivity Is a Natural Phenomenon
- 5.3 Radioactivity Results from an Imbalance of Forces
- 5.4 Radioactive Elements Transmute to Different Elements
- 5.5 The Shorter the Half-Life, the Greater the Radioactivity
- 5.6 Isotopic Dating Measures the Ages of Materials
- 5.7 Nuclear Fission--The Splitting of Atomic Nuclei
- 5.8 The Mass-Energy Relationship: E = mc(2)
- 5.9 Nuclear Fusion--The Combining of Atomic Nuclei