There are 36 protons and 36 electrons in the element krypton. It is element number 36 on the periodic table and has a mass of 83.8 grams/mole.
Krypton is classified as a noble gas and is in group 18 on the periodic table. It was discovered in Britain in 1898 by Sir William Ramsay and Morris Travers after they evaporated liquid air and isolated the element. It is a colorless, odorless and tasteless gas that is found in trace amounts in the environment. It can be isolated by distillation in chemistry laboratories and is frequently used in fluorescent lamps and photography.