A soft, silvery-white ductile, metallic element that is the most electropositive and alkaline of the elements and is used in atomic clocks and photoelectric cells and to catalyze hydrogenation of some organic compounds. The fundamental unit of time in the International System, the second, is based on the frequency of radiation between two energy states in an atom of the Cs-133 isotope. Atomic number 55; atomic weight 132.905; melting point 28.44°C; boiling point 671°C; specific gravity 1.873; valence 1.
A metallic chemical element (symbol Cs) with an atomic number of 55.
a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal
Find another word for cs. In this page you can discover 3 synonyms, antonyms, idiomatic expressions, and related words for cs, like: cesium, caesium and atomic number 55.