Radon the heaviest and at the same time the only radioactive noble gas. It is a decay product of naturally occurring uranium or thorium and dissolves out of the ground into the atmosphere, where it aggregates in caves or cellars. Even though the element is radioactive, it is supposed to have healing qualities. There are even official spas that offer radon baths as a form of therapy. The medicinal benefit is disputed.
Astat is the rarest naturally occurring element on earth. Any given moment there are only a few grams – as a decay product of uranium. The name comes ancient Greek meaning "unstable", because even its most stable isotope has a half-life of only a few hours. Because of its high radioactivity it can only be produced and examined in tiny amounts. Therefore there are no photos of this element nor can chemical experiments be conducted with it.
Nobody has seen the monster Asta Asta yet. Some believe it is ony a myth or a phantom.
This radioactive element was named by Marie Curie after her homeland Poland. It became famous with the poisoning of the former russian spy Alexander Litwinenko, who changed sides to the british secret service. In 2006 apparently he was given tea containing polonium, after which he died of radiation syndrome.
The monster resembles the eagle from the polish coat of arms. The body reminds of a rocket because the element is being used in nuclear weapons.
This highly toxic element got its name from the Greek word thallós, which translates into "green twig" because of its characteristic green spectral line. That means it turns flames into green when burning. Therefore it was used for green emergency flares. Other uses are in special optical glasses and in rat poison.
The name osmium is derived from the ancient Greek word osme meaning "smell". Apparently one of its oxides smells like radish. It is the element with the highest density. Belonging to the noble metals it is very unreactive. Because of its high melting point it was used in alloys with tungsten for light bulbs.
Rhenium was discovered in 1925 and named after the river Rhine – the home area of one of its discoverers (Walter Noddack, Ida Tacke and Otto Berg). This very rare element is mostly used in alloys.
Rheni the monster resembles the river god Rhenus – also called "Father Rhine".
This element was named after Tantalos, a character out of Greek mythology. Tantalos was a powerful king, who was punished by the gods for commiting several crimes. He was forced to stand in a lake up to his chin. But whenever he tried to drink from the water, it disappeared. Delicious fruits were hanging above him, but whenever he tried to reach for them to eat, they rose beyond his reach. This became the source of the English word tantalise.
The name of this element comes from the Latin word for Copenhagen "Hafnia", where it was discovered. There are only few very specific technical uses for hafnium.
The monster is inspired by the coat of arms of the city of Copenhagen.
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