Mercury-196 (196 - 80 = 116 neutrons)
Mercury-198 (198 - 80 = 118 neutrons)
Mercury-199 (199 - 80 = 119 neutrons)
Mercury-200 (200 - 80 = 120 neutrons)
Mercury-201 (201 - 80 = 121 neutrons)
Mercury-202 (202 - 80 = 122 neutrons)
Mercury-204 (204 - 80 = 124 neutrons).
