Centers for Disease Control and Prevention
Centers for Disease Control: Atsdr: Toxicological Profile for Plutonium
This article is designed to inform people of the health risks associated with plutonium. It explains how a person might be exposed to the element, and what the effects might be.
Web Elements
Web Elements Periodic Table: Plutonium
This WebElements site provides a great deal of elemental information. There are audio files demonstrating the correct pronunciation of the element name, pictures showing the electron shells, and information on isotopes, properties and more.
University of Kentucky
Uk: Plutonium Comics
Although this page focuses more on fun than on facts, it will quickly become a favorite of most Chemistry students. Find scanned panels and pages of comic books with elemental characters.
Florida-Spectrum Environmental Services
Florida Spectrum: Chemical Fact Sheet: Plutonium
This site provides a fact sheet with information on the basic data and properties of Plutonium. It also includes some of its uses.
TED Talks
Ted: Ted Ed: Plutonium: Periodic Table of Videos
The team at Periodicvideos has created a TED-Ed Lesson for every element of the periodic table. This one is about plutonium. [3:58]
Other
Chemical Elements: Plutonium
A nice, clear site, containing a good deal of elemental information, including; atomic weight, density, boiling point, isotopes and more. An image shows the electron energy levels for the element.
Other
Lanl: The Actinide Research Quarterly
This is "The Actinide Research Quarterly", a publication about current research of the actinide metals and nuclear materials technology by Los Alamos National Laboratory. Very detailed information.