Caesium (Cs) metal resembles rubidium and potassium. It is silvery white in appearance and is very soft and ductile. It is the most electropositive and most alkaline element. It oxidises easily in the ...

Caesium is the chemical element that has literally redefined time. All your life you'll have been told the importance of being on time. Well, thanks to caesium the entire world now keeps time so ...

You’ve given some thought to oxygen, carbon, uranium. But you’ve probably never mused about the element ytterbium, symbol Yb. A new study by scientists at the National Institute of Standards and ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. The 5071A Cesium Primary Frequency ...

A new material is like a roach motel for radiation: Cesium checks in, but it can’t check out. The substance, described online January 24 in Nature Chemistry, could provide a better way to safely store ...

You could slice through the world's softest metal with a plastic spoon, but you probably wouldn't keep your hand. Cesium looks like warm gold, feels like candle wax, and reacts like a grenade. At room ...

Japan’s damaged nuclear plant in Fukushima has been emitting radioactive iodine and caesium at levels approaching those seen in the aftermath of the Chernobyl accident in 1986. Austrian researchers ...