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Iodine - Wikipedia


Iodine is a chemical element with symbol I and atomic number 53. The heaviest of the stable ... Saltpeter produced from French nitre beds required sodium carbonate, ... Courtois once added excessive...

Which element produces a violet vapor with an extremely ...


Heating a white substance produces a vapor and black material Was the ... What element when burned produces a violet vapor with an unpleasant odor? iodine.

Gas Discharge Tubes - Chemical Education Homepage


Hydrodgen, Blue-violet. 2. ... Mercury Vapor, Blue-violet. 8. ... These colors can be used to produce atomic emmision spectra of the elements electrically excited.

Iodine, Chemical Element - reaction, water, uses, elements, proteins ...


The periodic table is a chart that shows how chemical elements are related to ... He was amazed to see clouds of beautiful violet vapor rising from the mixture. ... Radioactive isotopes are produced when very small particles are fired at atoms.

Groups of Related Elements | ChemPaths

chempaths.chemeddl.org/services/chempaths/?q=book/General Chemistry Textbook/The Structure of Atoms/1211/groups-related-elements&title=CoreChem:Group_VIIA:_Halogens

Dec 8, 2010 ... All the gases produce a choking sensation when inhaled. ... of the horse by the great clouds of violet iodine vapor which sublimed as a result of ...



... element belonging to Group VIIb (i.e. the Halogen Group of elements) of the ... contain iodide salts, with sulphuric acid to produce a vapour with a violet colour.

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Feb 2, 2009 ... discovery of a new element that is now known to us as iodine. ... substance appeared as a vapor of beautiful violet color and con- densed as black ... concentrated, so as to produce much heat, the substance ap- pears as a ...

53. Iodium (Iodine) - Elementymology & Elements Multidict


After the process, the various Sulphur compounds produced during ... added excess sulphuric acid resulting in a violet vapor cloud that condensed on colder ...

53 Iodine - Theodore Gray


It sublimes easily to produce a beautiful purple vapor. Beads in ampoule. Be sure to watch the video associated with this element. You can see ... The most obvious effect is the generation of a cloud of beautiful violet vapor. But if you watch ...

Purple fumes: the importance of iodine | www.scienceinschool.org


Aug 16, 2013 ... ... the element iodine, from the Greek word iodes, which means purple or violet. ... Physiologically, iodine is an essential element, required for the ... and iodine react to produce spectacular clouds of purple iodine vapour.

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Violet Smoke Chemistry Demonstration - About.com


Here are two ways to produce violet smoke for a colorful chemistry demonstration involving the element iodine. ... Produce Clouds of Violet Smoke. Iodine vapor produces the violet color of the smoke. - (c) Philip Evans. Iodine vapor produces ...

Flame Test Colors - Chemistry Geek


Na+ Yellow. K+ Violet. Ca2+ Orange-red. Sr2+ Red. Ba2+ Green. Cu2+ Blue- green .... Cr2O72- Orange. Cu(NH3)42+ Dark Blue; produced when ammonia is added to Cu2+ solutions ... Transition element ions with partially filled d orbitals tend to release colored light. ... I2 Dark-violet vapor & dark metallic looking solid.