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Briahna Vlcek

on 12 November 2013

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Transcript of Radium

Symbol, Atomic Number, and Atomic Mass
The symbol of radium is Ra, with an atomic number of 88, and an atomic mass of 226 u.

Electron Configuration and Valence Electrons
The electron configuration of radium is [Rn] 7s2. Radium has 2 valence electrons.

Radium is in Group 2.
Radium comes from a Latin word,
meaning ray.
Radium is a silvery-white radioactive element.
Malleability and Ductility
Radium is mostly malleable, but it is only malleable if it is heated up a bit. Also, you will not want to have it hammered or made into sheets because it is higly radioactive, and you don't want it around you. Radium is usually ductile.
Boiling Point and Melting Point
The boiling point for radium is 1140 °C.
The melting point for radium is 700 °C.
The density of radium is 5g/ml.
Room Temperature
Radium is a solid when at room temperature.
Texture and Hardness
Because radium is extremely radioactive, the texture and hardness is unknown, and it is impossible to find out because of it being so radioactive.
The radioactivity of radium is extremely high.
When it was Discovered......
Historical and Modern Uses
Citations of Resources
In 1898, in Paris, France, Marie Sklodowska and Perre Curie discovered radium. They discovered it when researching a mixture of elements called pitchblende.

Radium was used in medicines to treat diseases such as cancer and was also used for x-rays, but since it was so expensive, it was rarely used. It was also used to make aircraft instrument dials. A really popular use was to make glow in the dark watch and clock faces, which was made by mixing the radium with phosphor. Today radium is used in the treatment of only a few types of cancer; it is enclosed in a sealed tube and inserted in the diseased tissue.
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