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