Fluorine (F)

Highly toxic, refrigerants gas

Basic Information

Name: Fluorine Symbol: F Atomic Number: 9 Atomic Mass: 18.998 amu Electron Configuration: 2,7 Boiling Point: -188.14 ۫C Melting Point: -219.62 ۫C Diatomic element

Facts

Derived from the Latin word “fleure”, which means flow

Discovery: In 1886, by Henri Moissan

Obtained from: Mineral fluorite

Description

Greenish pale yellow acidic gas

Most reactive of the non-metal

→ combined with most other elements

13th most common element in the crust

Uses Helps other materials to burn → Rocket fuelsAlone it is poisonous → used in fluorine compound → nuclear industry Toothpaste → Average human body contains hundredth of ounce of fluorine Damage ozone layer

Bromine (Br)

volatile, mobile, dangerous reddish-brown liquid

Basic Information

Name: Bromine Symbol: Br Atomic Number: 35 Atomic Mass: 79.904 amu Electron Configuration:

2,8,18,7 Boiling Point: 58.78 ۫C Melting Point: -7.2 ۫C Diatomic element

Facts

Derived from the Greek word “bromos”, which means stench

Discovery: In 1826, by Antoine J. Balard from SALT WATER

Poisonous Obtained from: SEA WATER

Description

A reddish-brown liquid

The that is a at

normal room conditions.

Causes painful burns

only non-metal liquid

Uses Very poisonous → Pesticides Photographic film Malfunctioning of nervous system → Disturbances in genetic materials Organic Bromine can cause damage to organs → Can even cause cancer !!!!

Iodine (I)

bluish-black, lustrous solid

Basic Information

Name: Iodine Symbol: I Atomic number: 53 Atomic mass: 126.90 amu Electron configuration:

2,8,18,18,7 Boiling Point:183 ۫C Melting Point: 113.7 ۫C Diatomic element

Facts

Derived from the Greek word iôdes, which means “violet”

Discovery: In 1811, by Bernald Courtois from SULFURIC ACID

Required in humans Obtained from: sodium and

potassium compounds

Description When solid: looks metallic, grayish-

black or violet-dark gray color.

As a gas: violet color, with a harsh,

unpleasant odor. Sublimation → Never

exists as a liquid

Uses

→ First Aid

Iodine for body function A naturally occurring mineral for your body to function

normally.

Iodine Body Functions:Heat and Energy production Metabolism of fat Physical and Mental development Production of Thyroid hormone

Iodine Deficiency

Iodine Deficiency Disorders

For FOOD SOURCES high in IODINE try:

- Seafood - Kelp - Iodized Salt

Bibliography

http://www.chemicalelements.com/elements/br.html

http://www.carondelet.pvt.k12.ca.us/Family/Science/Halogens/bromine.htm

www.webelements.com/webelements/ elements/text/I/key.html

http://www.lm.liverpool.k12.ny.us/HyperChart/chemicalprops/bromine.html