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