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¹⁶Ne has not been observed. The isobaric multiplet mass equation predicts M - A = 25.15 ± 0.6 MeV (CE68A: ¹⁶Ne is then unbound with respect to breakup into ¹⁴O + 2p by 2.6 MeV. See also (GO60K, GO60P, BA61F, GO61N, GO62N, GO62O, GA64A, JA65C, KE66C). A search has been made for the two-proton decay of ¹⁶Ne in the bombardment of nickel by 150 MeV ²⁰Ne ions: the cross section is either < / = 1.8 μb (if E_pp > 1 MeV and τ(¹⁶Ne) >/= 10^-8 sec), or else τ(¹⁶Ne) < 10^-8 sec (KA64E). See also (GO65I, GO66J, LE66E, WA70E).