An element whose atomic structure makes it seem like another element. Often used by (or on) the intelligence services.

A radioactive noble gas with a very long half-life.

An ignoble gas found exclusively in the industrial wasteland of Ohio's Cuyahoga Valley.

The more of this element you have, the poorer you get.

An element necessary to restore good health

A short and meaningless element, often found punctuating long chains of other molecules.

[Juxt] That's my favourite amongst some very stiff competition.

Rumtumtiddleumtum: the most stable isotope of poohshum.

The last discovered element, or else.

An element formerly used in the manufacture of radios. If someone offers you an antique radio, check its authenticity by looking for the word "Hilversum" written on the tuning dial.

A metallic element, often used in the manufacture of ringing bells.

A constituent element of brass.

An element used in the preservation of cremated remains.