Rubidium is more explosive than the alkali metals above it on the table, but it's much more interesting when it's standing almost perfectly still.

Like argon, today's noble gas coincidentally features prominently in science fiction -- albeit in name only. But krypton also takes a place in the science factual story of international weights and measures.

Don't get too excited, because bromine is an element that brings the hammer down on both extreme emotions and extreme actions.

Throughout history, copying information has been arduous, messy, and even dangerous -- until one bored, depressed man figured out the secrets of selenium.

Considering how synonymous this episode's element is with "poison," it's shocking how eager people have historically been to ingest the stuff.

Silicon gets all the press, but germanium was the real trailblazer of the Information Age.

Meet one of the periodic table's lesser-known liquid metals -- and beware some dangerous competition from a few felonious element collectors.

Learn about some of Italy's most renowned chemists and how they inspired a most gruesome quest to conquer death.

We get lost in the woods with a couple of little guys in today's episode, and learn about a lesser-known American Civil War.

From religion to money to politics, nickel finds itself at the center of all kinds of awkward conversations.