Alternates between a rigid state and a malleable state. Over time the malleable periods become more protracted, and the rigid state becomes harder to achieve.

A rare substance found only around Rotheram.

Found in natural weedkillers. Toxic to humans.

Precious metal that is typically provided by or received from an ex-spouse in divorce settlements.

An element that greatly surprised its discoverer.

Originally dismissed as mere hearsay, this element was re-discovered in the Australian jungle and is now used in the advertising business. Not as you might think a halogen, but a different klass altogether.

Electrons capable of several excited states. Difficult to break away from lesser elements.