➤ It dissolves well in body fluids.

➤ It has an anesthetic effect.

➤ In case of hypertension, it is used as a drug with anesthetic properties.

➤ Headache, dizziness, weakness, irritation of the eyes and respiratory tract.

​​➤ ​Does not cause any health problems.

➤ ⁸³Kr - 15.4 MHz

➤ ⁸⁵Kr -80 ml/100 g min^{− 1} for grey matter

80 ml/100 g min^{− 1} for white matter.

➤ Used to diagnose and evaluate the functioning of the heart muscle and respiratory organs.

➤ During MRI of lung sacs in the form of a radioactive label.

➤ The Kr-N gas mixture is used in divers' breathing apparatus.

➤ If there is insufficient oxygen in the Kr-O mixture, there is a risk of asphyxiation.

➤ There is a narcotic effect on the body when inhaling gas mixtures containing Kr.

➤There is no specific antidote.

➤ Krypton is naturally produced by the decay of uranium and thorium nuclei.

➤ Kr has six stable isotopes.

➤ It forms clathrates with H₂O, H₂S, SO₂, phenol, etc.

➤ KrF₂ is a strong oxidizing agent (displaces oxygen from water), this molecule has a mixed covalent-ionic delocalized bond.

➤ To produce 1 liter of Kr, more than 1 million liters of air must be processed.

➤ The standard for 1 meter is 1650763.73 wavelengths of the Kr line.