The Atomic Nucleus

Paul Andersen explains how the structure of the nucleus influences the properties of the atom.  The number of the protons determines the kind of element.  Isotopes are formed when the number of protons remain the same but the neutrons are different.  Some isotopes are radioactive and may decay over time.  The rate of decay is the half-life and can be used to measure decay or time.

Bozemanscience Resources

Atomic Nucleus Concept Map  
Atomic Nucleus Slideshow