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Iodine is a chemical element with symbol I and atomic number 53. The name is from Greek ἰοειδής ioeidēs, meaning violet or purple, due to the color of iodine ...

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.

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.

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 ...

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 ...

Flame Test Colors - Chemistry Geek

www.chemistrygeek.com/Descriptive Colors.doc

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.

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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 ...

Reaction between aluminium and iodine- Learn Chemistry


This is a spectacular demonstration as clouds of purple iodine vapour are produced. ... chemistryExpositionElementsCompoundsGroup 3: boron-thallium Group 7: ... exothermic, and the excess iodine vaporises, forming a deep violet vapour.

"Solid iodine, contaminated with salt, was heated until the iodine ...


The violet vapor of iodine was then cooled to yield the pure solid. ... "A sample of mercury(II) oxide was heated to produce mercury metal and oxygen gas.

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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.



... 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.