Radon (Rn)

Diane Vik Period 2

History


  • Discovered by Friedrich Ernst Dorn in 1900, in Germany
  • Originally named Niton, changed to Radon in 1923
  • Named after “the element radium”

Uses of Radon

  • Earth quake prediction
  • Radiation therapy in hospitals
  • Therapeutic

Description

  • Radon atoms have 86 electrons
  • Is a non-metal
  • Is known as the heaviest element
  • Radon build up has been causing safety issues in homes

Biology

  • Has no biological role
  • You can use your weight to find out how much Radon in is your body
  • Is hazardous when inhaled
  • Its radio decay collects on dust in the air
  • Chemically is not a hazard
  • Found in some spring waters

Geology

  • Heaviest know gas
  • Often found in uranium ores
  • Found as dissolved gas in some spring waters
  • Radon buildup in homes(basements) from the surrounding soil and rocks has become a safety issue

Properties

  • Density: 4400 kg m-3
  • Melting Point: 202 -71 °C(-79.1 °F)
  • Liquid Range: 9.3 K

Fun Facts

  • Is a colorless gas at normal temperatures
  • Becomes yellow as the temperature is lowered below the freezing point
  • Is orange-red at the temperature of liquid air

Big image

Properties



Rn-Symbol

86-Atomic Number

222-Atomic weight

Noble Gas-Group

6-Period

Colorless

Non-metallic