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 ...
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.
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.
Get information, facts, and pictures about Halogen elements at ... to collect
potassium nitrate when he noticed that a beautiful violet vapor was produced.
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.
Hydrodgen, Blue-violet. 2. ... Mercury Vapor, Blue-violet. 8. ... These colors can
be used to produce atomic emmision spectra of the elements electrically excited.
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 ...
Aug 16, 2013 ... Physiologically, iodine is an essential element, required for the ... and iodine
react to produce spectacular clouds of purple iodine vapour.
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.
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