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9 paź 2024 · cesium (Cs), chemical element of Group 1 (also called Group Ia) of the periodic table, the alkali metal group, and the first element to be discovered spectroscopically (1860), by German scientists Robert Bunsen and Gustav Kirchhoff, who named it for the unique blue lines of its spectrum (Latin caesius, “sky-blue”).
- Cesium-133
In quantum mechanics: Cesium clock …the ground state of the...
- Cesium-133
29 cze 2023 · Cesium is a chemical element with the atomic number 55 and is represented by the symbol ‘Cs’ in the periodic table. It is a soft, silvery-golden alkali metal and belongs to the s-block of group 1 of the periodic table.
28 cze 2024 · Cesium is a highly reactive alkali metal, characterized by its readiness to lose its single valence electron. This behavior is evident in its chemical properties: Reactivity with Water: Cesium reacts explosively with water, even more vigorously than other alkali metals. This reaction produces cesium hydroxide (CsOH) and hydrogen gas.
Caesium (or cesium) is the chemical element with the atomic number 55 on the periodic table. Its symbol is Cs. Caesium is an alkali metal. Its melting point is low (28 °C). It is extremely reactive. Because of its high reactivity, it is a dangerous chemical. It may set itself on fire (ignite) in air. It explodes on contact with water.
21 lis 2023 · The cesium definition describes a chemical element on the periodic table of elements with the chemical symbol Cs. What is the atomic number of cesium?
Definition. Cesium is a soft, silvery-white alkali metal that is the most electropositive and reactive of all the stable elements. It is the least dense of the stable elements and has the highest electron affinity of any element, making it highly reactive and prone to forming ionic compounds.
24 maj 2022 · Cesium or caesium is an alkali metal with atomic number 55 and element symbol Cs. Cesium or caesium is a shiny, pale gold metal with element symbol Cs and atomic number 55. Cesium is the softest metal that is a solid at room temperature. It becomes a liquid element at 28.5 °C or 83.3 °F.
