This is the category Marie Curie won her second Nobel Prize for.
What is physics?
300
This element caps the Washington monument, and was for a little while in 1880's considered most expensive metal in the world.
What is aluminum?
300
This metal capped tipped the famous Parker 51 pen, as a much more rare a durable element.
What is ruthenium?
300
This element coats shark teeth and can allow them to sit at the bottom of the ocean for millions of years.
What is manganese?
400
How did Joliot-Curie die?
What is leukemia
400
This metal was the original material Dorothy's shoes were made of in The Wonderful Wizard of Oz, and was an allegory about why this metal versus the gold standard is better.
What is europium?
400
This element is what Mark Twain made his devil out of.
What is radium?
400
This element is toxic in large doses, and often ingested by cattle causing them to go crazy.
What is Selenium?
500
This element is named after meitner
What is meitnerium?
500
This metal was the original material Dorothy's shoes were made of in The Wonderful Wizard of Oz, and was an allegory about why this metal versus the gold standard is better.
What is silver?
500
THis element helps treat people who are bipolar.
What is Lithium?
500
This idea can cause people to interact with the supernatural. William Crookes was nearly removed from the Royal Society for his participation in these activities.