Krypton: Light Up Your Day With The Noble Gas. By Mandy Liu - mrs. BryAn c periOd

Sir William Ramsay pointing at his new discovered element, krypton on the periodic table's last column.

Krypton (Kr) was discovered in the remenants left after the components of liquid air had nearly boiled away. The element was discovered by W. Ramsay and M. W. Travers. Krypton was discovered in the United Kingdom in the year of 1898. The name of the element is derived from the Greek word, kryptos, which means "hidden".

  • The atomic number of Krypton is 36.
  • The atomic mass of Krypton is 83.8.
  • Krypton has 36 protons, 48 neutrons and 36 electrons.
  • Krypton has 6 stable isotopes: Kr-78, Kr-80, Kr-82, Kr-83, Kr-84, Kr-86

A krypton-filled tube glowing blue.

Krypton occurs in trace amounts in the atmosphere and is often found and mixed in fluorescent lamps with another gas, Argon. Krypton has been used to fill small bright lamps and incandescent bulbs such as used by miners; to fill bactericidal lamp-starter tubes and special electron tubes; and is used in electron etching and ion engines.

A krypton-ion tertiary laser used for protein research.

Krypton is used in photographic flashes for high-speed photography. Krypton light has many spectral lines so In 1960, the official length of the meter was defined by the wavelength of the orange-red spectral line of krypton-86, an isotope of Krypton. Krypton is also mixed with other gases to create luminous signs that glow with a greenish-yellow light and can be used for lasers and lamps.

An interesting fact is krypton is not very abundant in our planet’s atmosphere: For every krypton atom, there are about 8200 argon atoms, 184 000 oxygen molecules and 685 000 nitrogen molecules. Krypton's abundance on Earth's crust is 100 parts per trillion by weight, 30 parts per trillion by moles. This shows just how little the amount of Kryton is on our planet.

A fun fact is krypton is a colorless, odorless, inert, unreactive gas. Krypton in its solid state is white and crystalline. Krypton-fluorine lasers produce pulses with 500 times the power of the entire U.S. electrical grid.

Krypton glowing at high voltage in an electrical discharge tube.

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