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Isotopes of neon
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<p><a href="/facts/Neon/5bF1FwGL">Neon</a> (10Ne) possesses three stable <a href="/facts/Isotope/KD9B1y6o">isotopes</a>: 20Ne, 21Ne, and 22Ne. In addition, 17 radioactive isotopes have been discovered, ranging from 15Ne to 34Ne, all short-lived. The longest-lived is 24Ne with a half-life of 3.38(2) min. All others are under a minute, most under a second. The least stable is 15Ne with a half-life of 770(300) <a href="/facts/Yoctosecond/bEovB6Tp">ys</a> (7.7(3.0)×10−22 s). See <a href="/facts/Isotopes_of_carbon/K1LfqDNj">isotopes of carbon</a> for notes about the measurement. Light radioactive neon isotopes usually decay to <a href="/facts/Fluorine/YUV0Fb8m">fluorine</a> or <a href="/facts/Oxygen/acyn6o8r">oxygen</a>, while heavier ones decay to <a href="/facts/Sodium/eYuSPu2V">sodium</a>. </p>