Neon-22

Main isotopes of neon

iso NA half-life DM DE (MeV) DP 20Ne 90.48% is stable with 10 neutrons 21Ne 0.27% is stable with 11 neutrons 22Ne 9.25% is stable with 12 neutrons
Standard atomic weight (Ar)	20.1797(6)

Neon (₁₀Ne) possesses three stable isotopes, ²⁰Ne, ²¹Ne, and ²²Ne. In addition, 16 radioactive isotopes have been discovered ranging from ¹⁶Ne to ³⁴Ne, all short-lived. The longest-lived is ²⁴Ne with a half-life of 3.38 minutes. All others are under a minute, most under a second. The least stable is ¹⁶Ne with a half-life of 9×10⁻²¹ s. See isotopes of carbon for notes about the measurement.

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