Nuclear and Atomic Physics

Photoelectric effect:
Anna Spitz - very short and concise, just doesn't have the neon bulb or high power lamp.
James Lincoln for Arbor Scientific - includes blocking with glass and a neon bulb (3:30).
National Stem Center - quick and concise, but no glass.
Action Lab - shows very bright light (2:15) not working and neon bulb, too (7:00).

Lasers:
Laser cleaner. Wow!

Nuclear Power Animations:
Chain Reaction | Fission | Fussion

Veritasium:
Types of Radiation - OK. I like the shielding part.
Radiation vs. Radioactive Atoms.

My first book on nuclear reactions (no, really! I read the first chapter in 8th grade): A Guidebook to Nuclear Reactions by Dr. Anthony Nero, Jr. (Google book)