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By Brett
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"If
your in the Dark and can't see your clock;
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www.willamette.edu/~sbjohnso/
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just
be glad there's radium"
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Facts
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Atomic
number
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88
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Chemical
Symbol
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Ra
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Atomic
Mass
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226
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Atomic
Volume
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44.2
cm3/mol
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Periodic
Table
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Period 7 Family
2
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Radium is also a
Alkine Earth Metal
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Properties
Radium is a Solid
and a Metal. It's Melting Point is 700ºc and it's
Boiling point is 1140ºc.Radium is a good conductor of
Electricity and is a Brilliant White Color. When Radium is
exposed to the sun it turns Black. Radium is more volatile
then Barium and decomposes in water. Radium emits three
types of rays Alpha, Beta, and Gamma Rays.
Electrons in
Energy Level
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1
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2
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2
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8
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3
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18
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4
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32
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5
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18
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6
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8
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7
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2
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Uses
Radium was
once used in clocks to make the hands glow in the dark. This
stopped when they found it was dangerous. Radium can also be
used to treat diseases & cancer.
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http://the-luggage-shop.com/seiko-bedside-alarm-clocks-get-up-glow-collection.html
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Radium is
extremely Radioactive.
Inhalation, injection, or body exposure to Radium can
cause Cancer or body disorders.
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www.lostangel.com/bands.htm
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Isotopes
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Isotopes
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Halflife
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222
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38 sec
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223
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11.43days
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224
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3.66days
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225
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14.9days
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226
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1600years
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228
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5.76
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History
Radium was
discovered by Marie Sklodowska Curie (1867-1934) in 1898.
She had discovered Radium in pitchblende.
Curie worked with her husband Pierre Curie who helped
discover it. She won the Nobel Award for Chemistry when she
discovered Radium. This was her second Nobel Award. The
First one she discovered was for her and her Husbands basic
research in radioactivity.
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Glossary
- Pitchblende:n.
is a common uranium ore; that was found to be more
radioactive then uranium.
- Isotope:n.
any of two or more forms of a chemical element, having
the same number of protons in the nucleus
- Halflife:n.
the time required for one half of the atoms of a given
amount of a radioactive substance to
disintegrate
- Radioactiveity:n.
the property possessed by some elements (as uranium) or
isotopes (as carbon 14) of spontaneously emitting
energetic particles (as electrons or alpha particles) by
the disintegration of their atomic nuclei
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www.chemmybear.com/ radium.html
This is a picture of radium
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Bibliography
- Chemicool
Periodic Table
- Environmental
Chemistry Periodic Table
- Interactive
Periodic Table of the Elements
- Periodic
Table
- Periodic
Table of the Elements
- Pictorial
Periodic Table
- Web
Elements Periodic Table
Glossary: dictionary.com
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