Rubidium-cesium-antimony coating is commonly applied to the photo-cathodes of photo-multiplier tubes, which are used in radiation detection devices, medical imaging equipment, and night-vision devices. Properties of Rubidium. Compared with potassium and sodium, rubidium is relatively rare, with a crustal abundance of just 78 mg kg-1 (Fyfe 1999).
The Metals. The alkali metals, lithium (Li), sodium (Na), potassium (K), rubidium (Rb) and cesium (Cs), are all extremely light in weight, compressible, and relatively, very soft.Lithium is the hardest of the alkali metals with a hardness of 0.6 on Mohs' scale. Freshly cut surfaces of the alkali metals show a silvery white luster, which tarnishes quickly and becomes dull in air.
The following uses for caesium are gathered from a number of sources as well as from anecdotal comments. I would be delighted to receive corrections as well as additional referenced uses.. Caesium (cesium in USA) has relatively few uses and is not often encountered.
Jul 07, 2013· Caesium or cesium[note 1] is a chemical element with symbol Cs and atomic number 55. 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.[note 2]Caesium is an alkali metal and has physical and chemical properties similar to those ofrubidium and potassium.
Dec 02, 2012· Best Answer: This question deals with periodic trends. Allow me to simplify. The trend for atomic radius is: -increases going down a group -decreases going from left to right across a period In the order of decreasing atomic size means that the biggest atom would be …
Rubidium dropped in water!!! Another experiment in our "small metallic collider" (aka, the anti-climax machine). We suspect this is the last time you will see it in action. More chemistry at More Information about Rubidium
Rubidium is a chemical element with the symbol Rb and atomic number 37. Rubidium is a very soft, silvery-white metal in the alkali metal group. Rubidium metal shares similarities to potassium metal and caesium metal in physical appearance, softness and conductivity.
Caesium (IUPAC spelling) (also spelled cesium in American English) is a chemical element with the 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), which makes it one of only five elemental metals that are liquid at or near room temperature. Caesium has physical and chemical properties similar to those of rubidium and potassium.
Caesium or cesium is the chemical element with the symbol Cs and atomic number 55. It is a soft, silvery-gold alkali metal with a melting point of 28 °C (83 °F), which makes it one of only five metals that are liquid at or near room temperature. [note 1] Caesium has physical and chemical properties similar to those of rubidium and potassium.The metal is extremely reactive and pyrophoric ...
Caesium has been used to reduce the radar signature of exhaust plumes in the SR-71 Blackbird military aircraft.  Caesium, along with rubidium, has been added as a carbonate to glass because it reduces electrical conductivity and improves stability and durability of fiber optics and night vision devices.
Demmel U, Höck A, Kasperek K, Feinendegen LE. 100 human pineal bodies (56 male and 44 females) were analyzed by means of instrumental neutron activation analysis for trace concentrations of cobalt, iron, rubidium, selenium, zinc, antimony and cesium. …
How do you sort the following elements by electron affinity from most positive to most negative value bismuth chlorine helium cesium and tellurium?
The reaction is faster than that of rubidium (immediately above caesium in the periodic table). 2Cs(s) + 2H 2 O → 2CsOH(aq) + H 2 (g) Reaction of caesium with the halogens. Caesium (cesium in USA) metal reacts vigorously with all the halogens to form caesium halides.
The reaction is slower than that of caesium (immediately below rubidium in the periodic table), but faster than that of potassium (immediately above rubidium in the periodic table). 2K(s) + 2H 2 O → 2KOH(aq) + H 2 (g) Reaction of rubidium with the halogens. Rubidium metal reacts vigorously with all the halogens to form rubidium halides.
Caesium chloride or cesium chloride is the inorganic compound with the formula Cs Cl.This colorless solid is an important source of caesium ions in a variety of niche applications. Its crystal structure forms a major structural type where each caesium ion is coordinated by 8 chlorine ions.
Up to 60 tissue samples were dissected from 13 human brains in defined regions and were analysed by means of neutron activation analysis for trace element concentration of cobalt, iron, rubidium, selesium, zinc, chromium, silver, cesium, antimony and scandium.
Th~ same con- clusions were obtained for iron, rubidium, selenium, antimony and cesium. A comparison of the fresh pineal weights with the concentrations of cobalt, iron, rubidium, selenium, zinc, antimony and cesium indicates a lack of any correlation …
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Cesium antimonide - chemical information, properties, structures, articles, patents and more chemical data. ... 12018-68-7, Antimony, compd. with cesium (1:3), ... production and sales of Lithium,Rubidium and Cesium series products etc.. We are the only producer of Rubidium series products in the world and one of the few really professional ...
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Caesium (cesium in USA) was discovered spectroscopically by Robert Wilhelm Bunsen and Gustav Robert Kirchhoff in 1860 in samples of mineral water from Durkheim. Their identification was based upon two bright blue lines in the spectrum. The name caesium (from the Latin "caesius" - heavenly blue) was coined for its bright blue spectroscopic lines.
Antimony is a chemical element with the symbol Sb (from Latin: stibium) and atomic number 51. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite (Sb 2 S 3). Antimony compounds have been known since ancient times and were powdered for use as medicine and cosmetics, often known by the Arabic name, kohl.
Cesium formate, dissolved or suspended in water, is used as a drilling fluid for drilling deep oil wells. These solutions are extremely dense, allowing them to "float" rock chips and dust to the surface from the bottom of a deep well as it is being drilled. The "purity" figure below, 75%, refers to the weight percent of cesium in cesium formate.
At least that's what they said. Actually, they faked the reaction of rubidium and caesium with water since they thought they were not spectacular enough for TV. They also said that the element beneath caesium in the periodic table, francium, would be even more reactive. They were wrong.
This WebElements periodic table page contains index for the element caesium
Rubidium is no exception to this rule, being silvery-white and melting at 39 ºC. The element has two naturally occurring isotopes. Rubidium-85 is the dominant form, accounting for 72 per cent of the total, while most of the remainder is the radioactive rubidium-87, which has a half-life of 50 billion years.
Rubidium is a chemical element with the symbol Rb and atomic number 37. Rubidium is a very soft, silvery-white metal in the alkali metal group. Rubidium metal shares similarities to potassium metal and caesium metal in physical appearance, softness and conductivity. Rubidium cannot be stored under atmospheric oxygen, as a highly exothermic reaction will ensue, sometimes even resulting in the ...
Cesium is an alkali metal, along with lithium, sodium, potassium, rubidium and francium. Alkali metals are highly reactive, have one electron in their outer shell, and do not occur freely in ...
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.
Caesium or cesium is a chemical element wi seembol Cs an atomic nummer 55. It is a saft, sillery-gowd alkali metal wi a meltin pynt o 28 °C (82 °F), which maks it ane o anly five elemental metals that are liquid at or near ruim temperatur .