History. The Properties of the Cesium ElementName of Element : Cesium Symbol of Element : Cs Atomic Number of Cesium : 55Atomic Mass: 132.90546 amu Melting Point: 28.5 °C - 301.65 °K Boiling Point: 678.4 °C - 951.55005 °KNumber of Protons/Electrons in Cesium : 55Number of Neutrons in Cesium : 78Crystal Structure: Cubic Density @ 293 K: 1.873 g/cm3 Color of Cesium : silvery-white. STP Occurrence Description 1 Hydrogen H 1 1 s Gas Primordial ... Caesium Cs 1 6 s Solid Primordial Alkali metal 56 Barium Ba 2 6 s Solid Primordial Alkaline earth metal 57 Lanthanum La 3 6 f Solid Primordial German chemists Robert Bunsen and Gustav Kirchhoff discovered cesium in 1860 when analyzing the spectrum of mineral water. Chemistry students will also find a helpful section on Chemical Formulas. Otherwise, the element would react with air or water. The library is licensed under an MIT license so you can modify it in any way you want and choose whether or not you want to share your modifications. Definition of the Cesium ElementA soft, silvery-white ductile metal, liquid at room temperature, the most electropositive and alkaline of the elements, used in photoelectric cells and to catalyze hydrogenation of some organic compounds. What is Cesium? If caesium is burned in air, the result is mainly formation of orange caesium superoxide, CsO 2. Atomic weight (average mass of the atom): 132.90 4. Sources. Because Cs-137 bonds with chlorides to make a crystalline powder, it reacts in the environment like table salt (sodium chloride): 1. Cesium moves easily through the air. Medical Uses of Cesium - Health and TreatmentsInteresting information on the Medical Uses of Cesium, Health and Treatments. The Elements are the building blocks of Modern Science & Chemistry, What is Cesium - Information - Chemistry - Periodic Table - Element - Info - Uses - What is Cesuim - Cecium - Caesium - Atomic Number - Atomic Weight - Mass - Online - Science - Quiz - What is Cesium - Information - Facts - Use - Chemical - Properties - Fact - Density - Radioactive - History - Cesium - Liquid - Gas - Solid - Chemical - Melting Point - Boiling Point - Metal - Hallogen - Noble - Rare Earth - What is Cesium - Information - Chemistry - Periodic Table - Element - Info - Uses - What is Cesuim - Cecium - Caesium - Atomic Number - Atomic Weight - Mass - Online - Science - Quiz - What is Cesium - Information - Facts - Use - Chemical - Properties - Fact - Density - Radioactive - History - Cesium - Liquid - Gas - Solid - Chemical - Melting Point - Boiling Point - Metal - Hallogen - Noble - Rare Earth - What is Cesium - Chemistry - Chemical - Substance - Compound - Part - Building block - Component - Factor - Module - Constituent - Molecule - Atom - Physical property - Elementary Substance - Isotope - Elment - Elemant - Symbol - Written By Linda Alchin. Periodic Table Group and Classification of the Cesium ElementElements can be classified based on their physical states (States of Matter) e.g. Indium Facts: Symbol In or Atomic Number 49, Tantalum Facts (Atomic Number 73 and Element Symbol Ta), Chemical & Physical Properties of the Element Hafnium, Silver Facts (Atomic Number 47 and Element Symbol Ag), Ph.D., Biomedical Sciences, University of Tennessee at Knoxville, B.A., Physics and Mathematics, Hastings College. Cesium is a chemical element with symbol Cs and atomic number 55. This element is a solid. - Element Properties and Periodic Table Info. Cesium reacts explosively with cold water, and reacts with ice at temperatures above -116°C. Obtaining pure cesium is difficult since cesium ores are frequently contaminated with rubidium, an element that is chemically similar to cesium. Some radioisotopes are produced in nature by slow neutron capture within old stars or by the R-process in supernovae. Here's a list of the chemical elements ordered by increasing atomic number.The names and element symbols are provided. The Atomic Number of this element is 55 and the Element Symbol is Cs. Cesium bromide (CsBr) Cesium chloride (CsCl) Cesium fluoride (CsF) Cesium hydride (CsH) Cesium iodide (CsI) Cesium oxide (Cs 2 O ) Cesium selenide (Cs 2 Se ) Cesium sulphide (Cs 2 S) Cesium telluride (Cs 2 Te ) Interesting facts: It is soft and ductile. Our cesium page has over 290 facts that span 97 different quantities. It has similarities … Robert Wilhelm BunsenRobert Wilhelm Bunsen (1811-1899) invented many lecture-room and laboratory appliances, most famously the Bunsen burner. 3. It is a soft, silvery-gold alkali metal with a melting point of 28 °C (82 °F), which makes it one of only five elemental metals that are liquid at or near room temperature. Caesium (or cesium) is the chemical element with the atomic number 55 on the periodic table. Alkali metals are soft, malleable, ductile, and are good conductors of heat and electricity. Learn about what is Cesium with these fast facts...These articles contain facts and information relating to Cesium and each of the other elements including the Periodic Symbol, group, classification, properties and atomic number which is often referred to as the Periodic Table Number. Each element has a one- or two-letter symbol, which is an abbreviated form of its present or former name.The element number is its atomic number, which is the number of protons in each of its atoms. Element Caesium (Cs), Group 1, Atomic Number 55, s-block, Mass 132.905. Its melting point is low (28 °C). 6s1 and the term symbol of caesium is 2S1/2. the alkali metal. The reaction with water is much more violent and energetic than the reaction between water and other alkali metals (e.g.. Cesium is a soft, ductile metal. He also invented the spectroscope and with it discovered rubidium and caesium; greatly perfected methods of electrolysis, inventing a new battery; made many investigations among metallic and organic substances. Our Periodic Table is simple to use - just click on the symbol for Cesium as on the Periodic Table for additional information and for an instant comparison of the Atomic Weight, Melting Point, Boiling Point and Mass - G/cc with any other element. An invaluable source of facts and information as a Chemistry reference guide. (adsbygoogle = window.adsbygoogle || []).push({}); What is Cesium? Medical Definition of cesium : a silver-white soft ductile element of the alkali metal group that is the most electropositive element known and that is used especially in photoelectric cells —symbol Cs — see Chemical Elements Table This is a list of elements by atomic number with symbol. Cesium or caesium is a metal with the element symbol Cs and atomic number 55. They can also be used for Cesium advertisement and marketing. She has taught science courses at the high school, college, and graduate levels. Cesium is used in atomic clocks, photoelectric cells, as a catalyst to hydrogenate organic compounds, and as a 'getter' in vacuum tubes. Non-radioactive cesium is not a nutritional requirement for plants or animals, but it's not particularly toxic, either. Spelling of the ElementCesium is spelt as Caesium in the UK. Another rich source of pollucite is the Karibib Desert in Namibia. Caesium (cesium in USA) metal reacts rapidly with water to form a colourless solution of caesium hydroxide (CsOH) and hydrogen gas (H 2). Cesium, an alkali metal, occurs in lepidolite, pollucte (a hydrated silicate of aluminum and cesium), and in other sources. Only one stable isotope of cesium occurs naturally — cesium-133. Cesium is a relatively rare element and averages approximately 3 parts per million in the Earth’s crust (Turekian and Wedepohl, 1961, p. 187). It was discovered by Robert Bunsen and Gustav Kirchhoff in 1860 in Heidelberg, Germany, when they analyzed the spectrum of mineral water. What is Cesium? Here is a collection of cesium element facts and atomic data: Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. It is readily drawn into fine wires. This refers to the color of the line in the spectrum the chemists saw that tipped them off about the new element. Classified as a n alkali metal, Cesium is a solid at room temperature. Nearly 75% of all the elements in the Periodic Table are classified as metals which are detailed in the List of Metals. Associated Uses of CesiumAtomic clocksRemoves air traces in vacuum tubesIon propulsion systemsMedicalPhotoelectric cellsCesium vaporMagnetometer. click on any element's name for further information on chemical properties, environmental data or health effects.. Atomic symbol (on the periodic table of elements): Cs 3. Atomic number (number of protons in the nucleus): 55 2. The Atomic Number of this element is 55 and the Element Symbol is Cs. The name for the element comes from the Latin word "caesius", which means "sky blue". Cesium is an element. The Properties of the Cesium Element Symbol of Element : Cs The other elements contained in this classification are as follows: What is Cesium - IUPAC and the Modern Standardised Periodic TableThe Standardised Periodic Table in use today was agreed by the International Union of Pure Applied Chemistry, IUPAC, in 1985 and now recognises more periods and elements than Dimitri Mendeleev knew in his day in his day but still all fitting into his concept of the "Periodic Table" in which Cesium is just one element that can be found. Occurrence of the Cesium ElementCesium is found in the mineral pollux, or pollucite, which occurs on the island of Elba, in South Africa, in the United States in Maine and South Dakota, and in Manitoba, Canada. Tiny quantities of cesium chloride are found in mineral springs and in seawater. Number of natural isotopes (atoms of the same ele… Areas covered include atomic structure, physical properties, atomic interaction, thermodynamics, identification, atomic size, crystal structure, history, abundances, and nomenclature. As of 2009, the price of 99.8% pure cesium metal was around $10 per gram or $280 per ounce. Although the official IUPAC name for the element is cesium, several countries, including England, retain the original Latin spelling of the element: caesium. Cesium dissolves easily in water. Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z. The device was based on a prism which separated light from a flame into a rainbow of colors. Chemical elements listed by symbol The elements of the periodic table sorted by symbol. The isotope Cs-137 is used in cancer treatments, to irradiate foods, and as a tracer for drilling fluids in the petroleum industry. This chemical element is distinctive for several reasons. Tiny quantities of cesium chloride are found in mineral springs and in seawater. There are two methods used to prepare pure cesium. Cesium definition, a rare, highly reactive, soft, metallic element of the alkali metal group, used chiefly in photoelectric cells. Caesium is an alkali metal. Cesium was the first element discovered using a spectroscope. Other elements classified as Alkali MetalsAlkali metals are soft, malleable, ductile, and are good conductors of heat and electricity. Caesium is a chemical element with atomic number 55 which means there are 55 protons and 55 electrons in the atomic structure.The chemical symbol for Caesium is Cs. Cesium (Cs), also spelled caesium, 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”). Radioactive cesium presents a health hazard because of the radioactivity, not chemistry. Calcium metal may be combined with fused cesium chloride or electric current may be passed through a molten cesium compound. gas, solid or liquid. List of elements Atomic Number Name Symbo Group Period Number Block State at. Chemical elements listed by ionization energy The elements of the periodic table sorted by ionization energy. milsymbol is a JavaScript library for creating military unit symbols, described in standard documents such as MIL-STD-2525 for the USA and STANAG APP6 for NATO, that are used to provide information about a piece of military equipment or unit. Density: 1.086 ounces per cubic inch (1.879 grams per cubic centimeter) 5. Caesium (atomic number 55, symbols Cs) is a an alkali metal with a silvery-gold color and the only liquid metal from the group of elemental metals, which is liquid near or at room temperature. This list contains the 118 elements of chemistry. First, the ore is sorted by hand. Caesium atoms have 55 electrons and the shell structure is 2.8.18.18.8.1. Cesium is classified as an "Alkali Metal" and located in Group 1 elements of the Periodic Table. It is the least abundant of the five non-radioactive alkali metals. Caesium oxide, consists of caesium and oxygen, is exploited in devices like vacuum … In addition, Caesium is employed as an industrial gamma-ray source. The only other metals in a liquid form at/ around room temperature are mercury and gallium. Cesium (chemical symbol: Cs) Cesium (Fig. Cesium Cesium is a chemical element with symbol Cs and atomic number 55. Caesium carbonate, a compound with the formula Cs2CO3, is used in organic synthesis as well as in energy conversion. This chemical element is distinctive for several reasons. The elements of the periodic table sorted by symbol. 1) is a rare, silvery-gold, soft, ductile alkali metal that is the softest of all metals in the period table, with a wax-like consistency at room temperature. In every spectrum they looked at, Bunsen and Kirchhoff found colore… Samples of cesium are kept in sealed containers, under an inert liquid or gas or in a vacuum. Cs(s) + O 2 (g) → CsO 2 (s) Reaction of caesium with water. Cesium reacts explosively with cold water, and reacts with ice at temperatures above -116°C. Caesium is a soft, silvery-gold alkali metal with a melting point of 28.5 °C, which makes it one of only five elemental metals that are liquid at or near room temperature. Chemical-Element Information Symbol: Cs Atomic number: 55 Year discovered: 1860. Caesium or cesium is a chemical element with symbol Cs and atomic number 55. 4. It can be also used in thermionic power converters. Chemical Symbol for Caesium. Test your knowledge of chemistry and the Periodic Table by completing the Element Symbols and Atomic Numbers on our Blank Periodic Table. However, it can be made radioactive in the laboratory. Radium salts have been used as radiation sources in the treatment of cancer but are gradually being replaced in such therapy by cobalt and cesium. Melting point: 83.1 degrees Fahrenheit (28.4 degrees Celsius) 7. Abundances of the element in different environments% in Universe 8×10-8% % in Sun 8×10-7% % in Meteorites 0.000014% % in Earth's Crust 0.00019% % in Oceans 5×10-8% % in Humans 2×10-6%. In its natural state, cesium is not radioactive. It is 45th in order of abundance of all elements … One of the world's richest sources of cesium is located at Bernic Lake, Manitoba. Boiling point: 1,239.8 F (671 C) 8. Each entry has a full citation identifying its source. The ground state electronic configuration of neutral caesium is [ Xe ]. Cesium is estimated to be present at an abundance of 1 to 3 parts per million in the Earth's crust, which is a fairly average abundance for a chemical element. Below are the 17 Creative Cesium slogans for chemistry assignments, science projects & project presentations. Cesium as on the Periodic TableCheck out Cesium on the Periodic Table which arranges each chemical element according to its atomic number, as based on the Periodic Law, so that chemical elements with similar properties are in the same column. What is Cesium / Caesium? From the Latin word caesius, sky blue.Cesium was discovered spectroscopically in 1860 by Bunsen and Kirchhoff in mineral water from Durkheim. Origin / Meaning of the name CesiumThe word Caesium originates from the Latin word 'caesius' which means "sky blue" from the bright blue lines in its spectrum. Caesium is a chemical element with atomic number 55 which means there are 55 protons in its nucleus. This list contains the 118 elements of chemistry. The symbol is constructed from a Symbol Identification Code, SIDC (sfgpewrh–mt in the image above), that provides i… The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs. A year earlier, Bunsen and Kirchhoff had developed the spectroscope. The price of cesium compounds is much lower. Caesium has chemical and physical properties that resemble those of potassium and rubidium. Either spelling is correct. It is a soft, gold-colored metal that is quickly attacked by air and reacts explosively in water. An Element classified as an Alkali Metal is a very reactive metal that does not occur freely in nature. Cesium or caesium is a metal with the element symbol Cs and atomic number 55. Here is … 1. 2. Its symbol is Cs. To obtain pure cesium, cesium and rubidium ores are crushed and heated with sodium metal to 650°C, forming an alloy that can then be separated with a process known as fractional distillation. Caesium (Cs), also known as Cesium, is used in photoelectric cells, vacuum tubes, scintillation counters, spectrophotometers, atomic clocks (caesium clocks), and photomultiplier tubes. One of the richest sources of pollucite, an ore that contains cesium, is the Tanco Mine at Bernic Lake in Manitoba, Canada. Facts about the History of the Discovery of Cesium ElementCesium was discovered by Fustov Kirchoff and Robert Bunsen in 1860 from mineral water found in Dürkheim, Germany. Cesium binds strongly to soil and concrete, but does not travel very far below the surface. Name: Cesium Symbol: Cs Atomic Number: 55 Atomic Mass: 132.90546 amu Melting Point: 28.5 °C (301.65 K, 83.3 °F) Boiling Point: 678.4 °C (951.55005 K, 1253.12 °F) Number of Protons/Electrons: 55 Number of Neutrons: 78 Classification: Alkali Metal Crystal Structure: Cubic Density @ 293 K: 1.873 g/cm 3 Color: silver British Spelling: Caesium Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. Discovered by: Gustav Robert Kirchhoff (1824-1887), a German physicist, and Robert Wilhelm Bunsen (1811-1899), a German chemist. What is Cesium? Numerous artificial radioactive isotopes have been produced. Phase at room temperature: solid 6. It was the first element discovered by spectrum analysis. Nonradioactive cesium and its compounds are used for infrared flares, to make specialty glasses, and in beer brewing. click on any element's name for further chemical properties, environmental data or health effects.. As I have stated before, Cesium is included in alkali metal group. Tracer for drilling fluids in the nucleus ): 55 year discovered: 1860 pollucite is least... Facts cesium element symbol information as a n alkali metal is a chemical element with symbol and! Analyzing the spectrum of mineral water from Durkheim metal with the formula Cs2CO3 is. Block state at has similarities … Our cesium page has over 290 that... The atom and is given the symbol Z TreatmentsInteresting information on chemical Formulas Robert Bunsen and had! 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