Uranium
Uranium on the Periodic Table
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Atomic Number - 92
Atomic Mass - 238.029
Atomic Symbol
Protons - 92
Neutrons - 146
Electrons - 92
Uranium is a metal - rare earth metal
Group - 6
Period - 7
Discovery of Uranium
Uranium was first found by Martin
Heinrich Klaproth, a German chemist,
in 1789. He found it in a pitchblende ( a
mix of uranium oxides) that was located
in the Joachimsal silver mines in
Germany or now known as Czech
Republic. He isolated uranium from all
of the other oxides and discovered
uranium.
Properties of Uranium
-Physical Properties: Uranium is silvery,
shiny, radioactive, its electricity conductivity
is 29 x 10^-4, its boiling point is 4.091, its
melting point is 1.408
-Chemical properties: Uranium transfers
into a hexavalent state in water, its reaction
with water is 22.5, reaction with metals is
1.72 x 10^-6
Uses of Uranium
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Uranium is used for several things
Uranium is sometimes used in shields
to block radiation.
Uranium, or one of its more
radioactive compounds, is used in the
military in nuclear weapons, bombs
and ammunition.
It was used in windows and pottery.
Uranium is also used in plants and
other places to produce electricity and
heat.
Uranium Bohr Model
1st shell: 2 electrons
2nd shell: 8 electrons
3rd shell: 18 electrons
4th shell: 32 electrons
5th shell: 21 electrons
6th shell: 9 electrons
7th shell: 2 electrons
Effects of Uranium
Uranium is slightly radioactive so
that it doesn’t affect the
environment much. Uranium is still
radioactive though and can affect
the human body. It can affect :
● The kidney
● The brain
● The liver
And a couple other normally
functioning systems in the human
body.
Reactivity of Uranium
Uranium is a pretty reactive element. It
reacts with almost all non-metallic
elements. Some are oxygen, sulfur,
chlorine, fluorine, phosphorus and
bromine. It also reacts with water (22.5),
acids (27.66), alkalies (10.7) and some
other things.
Where is uranium found
Uranium is located in the earth’s
crust. It can be found in large pits
and mine in not that far beneath
earth’s surface or just in low levels
rock, soil or water. Uranium makes
up 0.00018 of the earth’s crust and
is not as rare as some other metals
but is definitely not easy to find.
Some places on earth where
uranium is found are currently the
McArther river in Canada, the
Olympic Dam in Australia, Inkai in
Kazakhstan - some example of
places to find it around the world.
Facts of uranium
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Density - 18.95 grams per cubic
centimeter
Some compounds it forms Uranium boride, Uranium
carbide, Uranium dioxide,
Uranium oxide.
Costs about $40 per kilogram
Is a solid at room temperature
or its regular state.
Is radioactive
Quiz questions
1. What are two things that Uranium is used for?
2. What are two human body parts that Uranium can
harm?
Sources
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http://en.m.wikipedia.org/wiki/Depleted_uranium
http://periodictable.com/Properties/A/CrustAbundance.al.log.html
http://web.ead.anl.gov/uranium/guide/facts/
http://www.chemicalelements.com/elements/u.html
http://www.livescience.com/39773-facts-about-uranium.html
http://www.armz.ru/eng/uranium_mining/types_and_properties/chemical_properties_of_uranium/
http://education.jlab.org/itselemental/ele092.html
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http://upload.wikimedia.org/wikipedia/commons/6/6e/Ranger_Uranium_Mine.jpg
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