Isotopes of neon

Neon (10Ne) possesses three stable isotopes: 20Ne, 21Ne, and 22Ne.

In addition, 17 radioactive isotopes have been discovered, ranging from 15Ne to 34Ne, all short-lived.

The least stable is 15Ne with a half-life of 770(300) ys (7.7(3.0)×10−22 s).

See isotopes of carbon for notes about the measurement.

Light radioactive neon isotopes usually decay to fluorine or oxygen, while heavier ones decay to sodium.