Moore,+Abigail

=Welcome to Mrs. Bowman's Science pages=

Symbol- Rn
 * Radon**


 * Atomic number**- 86


 * Atomic mass**- 222.0176 (amu.)


 * Melting point** -96.07 degrees F (-71.15 degrees C)


 * Boling point** -79.33 degrees F (-61.85 degrees C)


 * Specific Gravity/Density- Density**: 9.73 g/l Gravity: of the liquid state 4.4 at -62 degrees C, at a solid state of 4


 * Number of protons, neutrons and electrons**- Protons: 86 Electrons: 86 Neutrons: 136


 * Number of valence electrons**- 8

Electrons per Energy Level: 2,8,18,32,18,8 1s2 2s2p6 3s2p6d10 4s2p6d10f14 5s2p6d10 6s2p6
 * Electron Configuration and orbital notation**-


 * How, when and who discovered it**- Radon was discovered by Friedrich Ernst Dorn, a German chemist, in 1900, while studying radium’s decay chain. Originally named nitron after the Latin word for shinning, nitrons has been known as radon since 1923. Today, radon is still primarily obtained through the decay of radium.


 * Where and how produced, processed, or mined**-Radon -222 is the decay of the product of radium - 226 they are part of a chain of uranium.


 * Chemical and Physical properties**- Some of the chemical properties of radon include its atomic number which is 86 and it has an atomic mass of 222 g/ml. Radon is the densest gas on the periodic table. Radon is a colorless, odorless, and tasteless gas, and therefore not detectable by human senses alone.


 * Minerals, compounds, or ores-** in which found-Since uranium is coming from the earths crust, they both are present in almost all rock, soil and water.


 * Two common chemical reactions**- combustion and forms gas

Cost or value- 800 dollars per gram, 4 dollars per mole. Price varies everyday.
 * Industrial or commercial uses**-Can cause cancer in your lungs (radioactive gas).

A smal gold tube filled with radon gas.
 * Diagram of Bohr Model-**
 * Picture of element in pure state**-


 * Unusual facts**-
 * Radon is colorless, radioactive, formed by the decays of radium.
 * 22 thousand people die per year from lung cancer in the United States from exposure to indoor radon gas.
 * The EPA estimates that 1 out of 15 homes have elected levels of radon gas.
 * Radon is the heaviest known gas; it is 9 times heavier than air.
 * The half life of uranium is 4.5 billion years.

citations: Bentor, Yinon. __Chemical Element.com - Radon__. Dec. 13, 2013 [].

//About Chemistry//. Anne Marie Helmenstine, Ph.D., n.d. Web. 12 Dec. 2013. [].

//Web Elements//. Mark Winter, n.d. Web. 12 Dec. 2013. [].