DISCOVERING THE ELEMENTS WEB QUEST
Element Name Bromine
Atomic Number 35
Picture of your element (as an element)
Picture of the element (as it is commonly used)
Element Symbol Br
Atomic weight 79.904
Description of the Element
Physical Properties:
State of matter at room temperature- liquid
Melting point temperature- 265.8 K,-7.2 C, 19 F
Boiling point temperature- 332.0 K, 58.8 C, 137.8 F
Density- (Br2, liquid) 3.1028 g·cm−3
Color- as a gas or a liquid it is red-brown and as a solid it has a
color of metallic luster
Texture- heavy, mobile, reddish-brown liquid
Hardness- liquid no hardness
Malleability- element is a liquid
Ductility- element is a liquid
Conductivity- very low conductivity (0.12 J/m-sec-deg) compares
to that of rubber
Chemical Properties:
Flammability-not flammable used in fire retardants
Photosensitivity- not affected much by light
Combustibility- not flammable so it will not combust.
Toxicity- toxic and causes burns
Discovery of the Element
Who discovered the element?
Antoine Ballard and Carl Jacob Lowing
Where was it discovered?
In the ash of sea weed from the salt marshes of Montpellier in 1826
What are the uses of the element?
Bromine is used for flame proofing agents, water purification
compounds, dyes, medicines, inorganic bromides used for
photography, pesticides, water purification, used to make plastics
flame retardant.
When was it discovered?
Bromine was discovered in the year of 1826.
What are a few of the common uses or the historical
uses of this element?
Used for medicine, water purification, dyes, photography,
pesticides.
List the way(s) in which the element appears naturally.
How is it mined or extracted from the ground?
Bromine does not occur naturally. It exists only as bromide salts in
diffuse amounts in crustal rock. Due to leaching, bromide salts
have accumulated in sea water, but at a lower concentration than
chloride. Bromine may be economically recovered from bromide rich
brine wells and from the Dead Sea waters.
What are the main compounds formed by this element
and the industrial uses of these compounds?
Many industrial compounds of bromine are no longer manufactured,
are being restricted, or scheduled for being phased out.
What are the main environmental concerns about this
element? Are its compounds causing pollution?
No Bromine does not cause any pollution in its natural state, but in
some products it can be in it may cause some pollution
Five fun Facts
Please list five fun facts you have learned about your element
during the course of this webquest.
1. Bromine is one of only six elements that is a liquid at room
temperature
2. Transported with very high caution usually transported in
steel tanks lined with lead and then supported by strong metal
frames.
3. If mixed with Potassium permanganate it forms a gas cloud
that suddenly disappears.
4. Bromine is not a naturally occurring element.
5. Bromine is a powerful oxidizing agent.
Your name Kyle Giumento
Your class period 5