It is a soft, silvery-golden alkali metal with a melting point of 28.5 °C (83.3 °F; 301.6 K), which makes it one of only five elemental metals that are liquid at or near room temperature. …

Dec 16, 2025 · Naturally occurring cesium consists entirely of the nonradioactive isotope cesium-133; a large number of radioactive isotopes from cesium-123 to cesium-144 have been prepared.

Caesium is a soft, gold-coloured metal that is quickly attacked by air and reacts explosively in water. The most common use for caesium compounds is as a drilling fluid. They are also used …

Today, cesium is primarily obtained from the mineral pollucite (CsAlSi 2 O 6). Obtaining pure cesium is difficult since cesium ores are frequently contaminated with rubidium, an element …

May 24, 2022 · Cesium (or caesium) is a soft, shiny, pale gold metal with the chemical symbol Cs and atomic number 55. It is the most electropositive and least electronegative element using …

Cesium is an extremely reactive metal and the most alkaline of the elements. It reacts explosively upon contact with water producing cesium hydroxide (CsOH), an extremely strong base that …

Cesium, an alkali metal, occurs in lepidolite, pollucte (a hydrated silicate of aluminum and cesium), and in other sources. One of the world's richest sources of cesium is located at …

Cesium, represented by the atomic number 55 and symbol "Cs," is an alkali metal that is soft, silvery-gold in color, and highly reactive. The element is known for its applications in atomic …

Nov 14, 2025 · Cesium is a soft, silvery-gold alkali metal with high reactivity, a low melting point, and strikingly different chemical and physical properties. It plays a crucial role in many high …

For many years, the name was also spelled caesium. Cesium is a silvery-white, shiny metal that is very soft and ductile. Ductile means capable of being drawn into thin wires. Its melting point is …