The Episodic Table of Elements

95. Americium: Mundus Novus

Many episodes have incorporated geology, but this one is more about geography. (And amateur nuclear science.)

94. Plutonium: Weapons-Grade

Element 94 causes a bit of a crisis for our collections.

93. Neptunium: Great Expectations

To the person who said, "the episodes are never too long," I'm terribly sorry.

The Episodic Table Of Elements Holiday Special

♪ O chemistry, o chemistry, the study of all matter ♫

92. Uranium: Two Untold Tales (Live At Harvard)

America's worst radioactive accident isn't Three Mile Island, and the Nazi nuclear physicist wasn't assassinated by the famous baseball player.

91. Protactinium: Decolonize Science

Sometimes we need a quiet moment in order to step back and look at the bigger picture.

90. Thorium: Bright Lights, Big City

Sure, thorium could provide practically limitless clean energy, but then we couldn't build weapons of mass destruction.

89. Actinium: The Windup… And The Pitchblende

We all know that radioactive rocks glow in the dark, except they actually don't, except for when they actually do.

88. Radium: Several Sordid Affairs

Out of all the characters who encounter radium in this episode, the only one to emerge unscathed is the guy who comes face-to-face with Satan.

87. Francium: Nothing To Do With Cats

You don't have to have a degree to do science, but it helps.

86. Radon: It’s Coming From Inside The House

You know something's amiss when you set off the radiation alarms while walking in to the nuclear power plant.

85. Astatine: Pathological Science

The story of astatine takes us to Alabama, Dacca, Romania, Vienna, and California, but definitely not Switzerland.

84. Polonium: The Distinguished Alumna Of Warsaw’s Flying University

Sadly, it's no longer possible to purchase this lethally radioactive element for fifteen cents and a cereal boxtop.

83. Bismuth: The Friendly Oddball

The periodic table shows the natural patterns and trends among the elements. Bismuth does not abide.

82. Lead: Irrational Self-Interest

We just can't seem to stop chasing the sweet, sweet taste of element 82.

81. Thallium: It Rides A Pale Horse

In which we learn how reading mystery novels might very well save a life.

80. Mercury: Fatally Toxic And Probably In Your Mouth

Even if you hate tuna, have flawless teeth, and only use digital thermometers, humans have historically not been shy about getting a mouthful of mercury.

79. Gold: Lump Sum

All other metals step aside, because today we deal with the king of elements.

78. Platinum: A Tous Les Temps, A Tous Les Peuples

Sometimes, being set in stone isn't permanent enough.

77. Iridium: T. Rex And The Terrible, Horrible, No Good, Very Bad Day

Alvarez noticed a great disturbance in the rocks, as if millions of voices suddenly cried out in terror and were suddenly silenced.