cesium (Cs),chemical elementof Group 1 (also called Group Ia) of theperiodic table, thealkali metalgroup, and the first element to be discovered spectroscopically (1860), by German scientistsRobert BunsenandGustav Kirchhoff, who named it for theuniqueblue lines of its spectrum (Latincaesius, ...
Cesium symbol.Chemical element of the periodic table on a glossy white background in a silver frame.Vector illustration.,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东
Cesium symbol with long shadow design. Chemical element of the periodic table. Vector illustration.,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、
Term Symbol 2S1/2 see expanded configuration ... Ionization Energies I (1) 3.893905 eV II (2) 23.15744 eV Electron Affinity 0.471626 ± 0.000025 eV 3803.92 ± 0.20 cm-1 Density 1938 ± 10 K, 9.4 ± 0.2 MPa 0.39 ± 0.01 g/cm3 critical point liquid, 301.65 K 1.853 g/...
Symbol:Cs Date of discovery:1860 Name origin:Latincaesius Appearance:silver Discoverer:Fustov Kirchoff Obtained from:pollucite, lepidolite Melting point:28.5 K Boiling point:678.4 K Density[kg/m3]:1.873 Molar volume:70.94 × 10-6m3/mol Protons/Electrons:55 ...
SymbolCsA soft, easily shaped, silvery-white element that is an alkali metal. It is liquid at room temperature and is the most reactive of all metals. Cesium is used to make photoelectric cells, electron tubes, and atomic clocks.Atomic number55. SeePeriodic Table. ...
General comments Commonly used in SIMS analysis and may be observed if samples have been investigated using this technique. About this element Symbol:Cs Date of discovery:1860 Name origin:Latincaesius Appearance:silver Discoverer:Fustov Kirchoff ...
Cesium (pronounced as SEE-zee-em), sometimes spelled as caesium, is a highly reactive metal when exposed to air and water. Denoted by the chemical symbol Cs, it belongs to the family of alkali metals[1]. It has one naturally occurring isotope, Cs-133 while the rest thirty-five are unst...
Cesiumis a silver-white soft alkaline metallic element (symbol Cs, atomic number 55). It is used industrially in photoelectric cells and as a catalyst for the hydrogenation of some organic compounds. The natural resonance frequency of excited caesium atoms forms the basis of the measurement of ti...
Just the facts Atomic number (number of protons in the nucleus): 55 Atomic symbol (on the periodic table of elements): Cs Atomic weight (average mass of the atom): 132.90 Density: 1.086 ounces per cubic inch (1.879 grams per cubic centimeter) ...