Iodine is a chemical element with symbol I and atomic number 53. The name is
from Greek ἰοειδής ioeidēs, meaning violet or purple, referring to the color of
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.
Hydrodgen, Blue-violet. 2. ... Mercury Vapor, Blue-violet. 8. ... These colors can
be used to produce atomic emmision spectra of the elements electrically excited.
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.
After the process, the various Sulphur compounds produced during ... added
excess sulphuric acid resulting in a violet vapor cloud that condensed on colder ...
... 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.
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.
chempaths.chemeddl.org/services/chempaths/?q=book/General Chemistry Textbook/Chemistry of the Representative Elements/1453/group-viia-halogens
Dec 16, 2010 ... Fluorine, the most electronegative element, has no positive oxidation states, ... All
the gases produce a choking sensation when inhaled. ... the owner of the horse
by the great clouds of violet iodine vapor which sublimed as a ...
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 ...