Krypton (Kr) is a chemical element with atomic number (Z) 36, group 18, period 4, and atomic weight 83.798. The Krypton (Kr) is colourless, odourless, fairly expensive gas that is present in the air at about 1 ppm, used to fill electric lamp bulbs which are filled with a mixture of krypton and argon, and for various electronic devices. (Refer to the Chemical Element; Periodic Table)
