HALOGENSGROUP 17 ELEMENTS
Kyle Akley, Blake Andreou, Melissa Ehl, Kenny Mintz
Origin of the Name Halogen
The family name means "salt-forming. They were given the name from the Greek roots Hal- (“salt”) and –gen (“to produce”)
because they all produce sodium salts of similar properties.
• Name is derived from Latin fluere meaning “to flow”
• Discovered in 1886 by Henri
Moissan by electrolyzing Hydrogen Fluorine
• Fluorine is most well known for constructing fluorides, which prevents tooth decay
Fluorine
• Name is derived from Greek chloros meaning greenish-yellow
• Discovered in 1774 by C.W. Scheele
• Chlorine is used in disinfectants, construction of PVC, chloroform, and as an oxidizing agent in many pharmaceutical products.
Chlorine
Bromine
• Name is derived from Greek bromos meaning stench
• Discovered in Montpelier, Vermont in 1826 by A.J. Balard
• Bromine is used primarily in insecticides and agricultural chemicals. It is also used in flame retardants.
Name is derived from Greek iodes meaning violet
Discovered in 1811 by Bernard Courtois
Used in old photos, printing inks and dyes, and is used in salts as a supplement
Iodine
Name derived from Greek astatos meaning unstable
Discovered in 1940 by D.R. Corson
There is no known usage of astatine considering its incredibly high radioactivity
Astatine
Unique Facts Greek word “Hals” means salt Greek word “Gen” means to make Fluorine is one of the most reactive
elements in existence Simple compounds containing Halogens
are Halides Fluorine gas is deadly: Breathing in .1%
Fluorine can cause death
Unique Facts Small amounts of Fluoride are used to
prevents tooth decay Bromium evaporates easily at room
temperature, emitting an orange vapor Bromine emits a very strong, bad odor Bromine gets its name from the Greek
word “Bromos” which means stench Fluorine, Chlorine, and Iodine are
essential for human health and life.
Unique Facts At room temperature, halogens exist in
all three forms of matter Halogens make up the diatomic
elements
General Characteristics
Fluorine Iodine
Bromine Chlorine