Iodine is classified as a halogen — a subset of very chemically reactive elements (Group 17 on the periodic table) that exist in the environment as compounds rather than as pure elements.

as well as the legacy of past iodine deficiency. Here are a few juicy nuggets about element number 53 on the periodic table, and its extraordinary uses. Seaweed, plankton, bacteria and some simple ...

The periodic table's organization provides important information about an element's ... fluorine, bromine and iodine — and those two strategies worked for those particular elements, according ...

iodine kills bacteria, and white phosphorous burns underwater. It's safe to say that Brielle schooled "Harry Potter" actor Daniel Radcliffe who merely sang the periodic table of elements on The ...

When Dmitrii Mendeleev proposed his periodic table 150 years ago ... Chlorine, bromine and iodine make up what German chemist Johann Wolfgang Döbereiner called a “triad.” ...

bromine and iodine. Something seemed to repeat and by placing chemically similar elements next to each other, a two-dimensional table could be constructed. The periodic table was born. Importantly ...