The longest-lived isotope of the element radium has a half life of only 1,600 years, which means that it is highly radioactive. It was once used as an ingredient in luminous paint for watch hands and aircraft instrument dials. 

We are able to supply metallic samples of two radioactive elements: thorium and uranium. This one is uranium. A special export licence is required for shipments outside the EU and we can help with the application process.