I've shared a couple of great periodic table resources in the past, including The Interactive Periodic Table of Elements (which is one of the most popular articles) and here's another great one: The Periodic Table of Videos.
The Periodic Table of Videos is a collection of videos on YouTube, created in a collaboration between the University of Nottingham's School of Chemistry and video journalist Brady Haran. The collection includes videos about all 118 elements and they are updating and improving the original videos while added more films about other aspects of chemistry, such as molecules. This is a great resource for any science teacher or student to use to help learn and understand more about chemistry.
Here is a link to their YouTube page. You can access the videos from the main page or from their YouTube page. The main site shows new videos and which videos have been updated.