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By Brett

"If your in the Dark and can't see your clock;

 

 

www.willamette.edu/~sbjohnso/

just be glad there's radium"

Facts

Atomic number

88

Chemical Symbol

Ra

Atomic Mass

226

Atomic Volume

44.2 cm3/mol

Periodic Table

Period 7 Family 2

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

1

2

2

8

3

18

4

32

5

18

6

8

7

2

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.

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.

 

 

www.lostangel.com/bands.htm

Isotopes

Isotopes

Halflife

222

38 sec

223

11.43days

224

3.66days

225

14.9days

226

1600years

228

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.

 

Glossary

  1. Pitchblende:n. is a common uranium ore; that was found to be more radioactive then uranium.
  2. Isotope:n. any of two or more forms of a chemical element, having the same number of protons in the nucleus
  3. Halflife:n. the time required for one half of the atoms of a given amount of a radioactive substance to disintegrate
  4. 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

Bibliography

 

  1. Chemicool Periodic Table
  2. Environmental Chemistry Periodic Table
  3. Interactive Periodic Table of the Elements
  4. Periodic Table
  5. Periodic Table of the Elements
  6. Pictorial Periodic Table
  7. Web Elements Periodic Table

Glossary: dictionary.com