thorium 1

Thorium metal, a radioactive element. Thorium actually creates radon gas when its atoms break down, so this is really a tube with three elements in it: thorium, argon to keep it from oxidizing, and the radon the thorium has created.

Flickr page for this photo.

Visit the Eye for Science Flickr group.

Get the "Eye for Science" widget here and install it on your own blog. Spread the scienticity!

Like this image? Want it for your smartphone wallpaper?
Use this QR Code to load it on your smartphone and enjoy!