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Perhaps more than all others, the 13th element on the periodic table is one of utter contrasts. Although once highly valued as a
"precious metal," the price of a kilogram of this element today is considerably less than one's morning cup of gourmet coffee; alloys of
this element are often dense and durable, yet the pure element is a light and soft metal; although this element is reasonably reactive, it
is also readily passivated, rendering it essentially rustproof.
Name: From Latin alumen,alum.
Atomic mass: 26.98.
History: Discovered in 1825 by Danish chemist
Hans Christian Oersted.
Occurrence: Aluminum is the most abundant
metal in Earth's crust, but it is not found free in
nature. Today, nearly all of the world's
aluminum is obtained by isolation from
aluminum oxide derived from bauxite ore.
Appearance: Silvery white, lightweight metal.
Behavior: Soft, nonmagnetic, and nonsparking.
Pure aluminum is easily formed, machined, and
cast, and it can be alloyed with a variety of
metals. It is also a good conductor of electricity
and an excellent reflector of radiation. The
metal is generally nontoxic but can be harmful
when ingested.
Uses: Used to make cans, kegs, wrapping foil,
and household utensils. It has numerous
applications in the vehicle, aircraft, and
construction industries.
Discovered : 1825 by Hans Oersted
Isolated in Copenhagen, Denmark
Origin : From 'alumen', the Latin for the mineral alum.
Description :
The most abundant of metals. A lot of energy is needed to
extract it from its ores : however, this is worthwhile because
it does not rust and is easy to recycle. It is lightweight but
tough and is widely used for window frames, aircraft parts,
engines, kegs, cooking oil, drinks cans, etc. Foods with above
average amounts of aluminium are tea, processed cheese,
lentils and sponge cakes (where it comes from the rising
agent). Cooking in aluminium pans does not greatly increase
the amount in our diet except when cooking acid foods such as
rhubarb. Some indigestion tablets are pure aluminium
hydroxid.
Discovering the Elements Webquest
Element Name: Aluminum
Atomic Number: 13
Element Symbol: Al
Atomic weight: 26.981538
Picture of your element (as an element)
Picture of the element (as it is commonly used)
Description of the Element
Physical Properties:
State of matter at room temperature: Solid
Melting point temperature: 1220.58 °F
Boiling point temperature: 4566 °F
Density: 2.70 g/cm³
Color: Silvery
Texture: Smooth
Hardness: Medium
Malleability: Medium
Ductility:
Conductivity: 61.00
Chemical Properties:
Flammability: its not
Photosensitivity
Combustibility
Toxicity
Discovery of the Element
Who discovered the element?
Where was it discovered?
What are the uses of the element?
When was it discovered?
What are a few of the common uses or the historical uses of
this element?
List the way(s) in which the element appears naturally.
is it mined or extracted from the ground?
How
What are the main compounds formed by this element and the
industrial uses of these compounds?
What are the main environmental concerns about this element?
Are its compounds causing pollution?
Five fun Facts
Please list five fun facts you have learned about your element during the
course of this webquest.
Your name: Josh Snyder
Your class period: Period 2