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
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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 fuels
Alone 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 reddishbrown 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
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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 only non-metal
that is a liquid at
normal room
conditions.
 Causes painful
burns
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
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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.ht
ml
 http://www.carondelet.pvt.k12.ca.us/Family/Scie
nce/Halogens/bromine.htm
 www.webelements.com/webelements/
elements/text/I/key.html
 http://www.lm.liverpool.k12.ny.us/HyperChart/ch
emicalprops/bromine.html