Krypton Gas

 Kr gas

◽️It is a noble gas with atomic number 36.

◽️This is considered as an element belonging to the 18th group of the 4th cycle.  Also known as fourth noble gas.

◽️A colorless gas.

◽️A very rare gas.

◽️A light blue/grey color appears under high voltage.

◽️There are 6 stable isotopes.

Used

🔵Lighting.

🔵Important in photography.