Search results
Element Caesium (Cs), Group 1, Atomic Number 55, s-block, Mass 132.905. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
This comprehensive guide delves into its physical and chemical properties, reactivity, abundance, and the cutting-edge uses in scientific research and technology. Learn about the safety measures and interesting facts surrounding this highly reactive element.
Caesium (IUPAC spelling; [9] also spelled cesium in American English) is a chemical element; it has symbol Cs and atomic number 55. 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 .
9 paź 2024 · Cesium is the most electropositive and most alkaline element, and thus, more easily than all other elements, it loses its single valence electron and forms ionic bonds with nearly all the inorganic and organic anions.
Caesium atomic number is 55 and its atomic mass is 132.90 g/mol. Chemical Characteristics. Caesium is very reactive and pyrophoric (ignites spontaneously in air). It reacts with water vigorously and explosively, even at low temperatures. Caesium resembles rubidium in its chemical characteristics [3].
Cesium is the 55th element in the periodic table and has a symbol of Cs and atomic number of 55. It has an atomic weight of 132.90545 and a mass number of 133. Cesium has fifty-five protons and seventy-eight neutrons in its nucleus, and fifty-five electrons in six shells.
Characteristics: Cesium is silvery-gold, soft, ductile alkali metal. It is liquid in a warm room, melting at 28.4 o C (83.1 o F). Cesium is one of the few metals that is liquid near room temperature. The others are gallium, francium and mercury. Cesium is an extremely reactive metal and the most alkaline of the elements.
