Name: Radon
Symbol: Rn
Atomic Number: 86
Atomic Mass: 222.0 amu
Melting Point: 202.15 K
Boiling Point: 211.35 K

Appearance
  Color: colorless
  Crystal Structure: cubic
  Usage: treatment of cancer		 Isotope     Half Life

Rn-211      14.6 hours
Rn-212      24.0 minutes
Rn-217      0.6 milliseconds
Rn-218      35.0 milliseconds
Rn-219      3.96 seconds
Rn-220      55.61 seconds
Rn-222      3.82 days
Randon was discovered on 1898 by Fredrich Ernst Dorn. Its name comes from the element radium. It is used to treat cancer. It is obtained from the decay of radium, and that is why it's name comes from that.

Radon TREATS CANCER
  Radiation was found useful in treating cancer. The radiation is sealed in test tubes to be planted into the tumor.

Radon has 86 protons, 86 electrons, and 136 neutrons. It has a total of six energy levels.
  1st energy level: 2 electrons
  2nd energy level: 8 electrons
  3rd energy level: 18 electrons
  4th energy level: 32 electrons
  5th energy level: 18 electrons
  6th energy level: 8 electrons

Facts
Radon is colorless and odorless at room temperature.
Radon is chemically unreactive.
Radon, despite the fact that it is unreactive, is very dangerous!
Radon is very hazardous and radioactive.
Radon gives off alpha rays.
Radon is the densest gas known today.
return to front page
Hosted by www.Geocities.ws

1