词条	Isotopes of the Group Vla elements
释义	Isotopes of the Group Vla elements Table Isotopes of the Group Vla elements stable isotopes unstable isotopes mass abundance (percentage) mass half-life oxygen 16 99.759 14 71 seconds 17 0.037 15 2.07 minutes 18 0.204 19 29 seconds 20 14 seconds sulfur 32 95.0 30 1.4 seconds 33 0.76 31 2.7 seconds 34 4.22 35 88 days 36 0.014 37 5.1 minutes 38 2.78 hours selenium 74 0.87 70 44 minutes 76 9.02 71 5 minutes 77 7.58 72 8.4 days 78 23.52 73** 42 minutes 80 49.82 7.1 hours 82 9.19 75 120 days 77 17.5 seconds 79 6.5(104) years 81** 57 minutes 18.6 minutes 83** 70 seconds 23 minutes 84 3.3 minutes 85 39 seconds 87 16 seconds tellurium 120 0.089 114 16 minutes 122 2.46 115 6 minutes 123 0.87 116 2.5 hours 124 4.61 117 61 minutes 125 6.99 118 6 days 126 18.71 119** 4.7 days 128 31.79 16 hours 130 34.48 121** 154 days 17 days 123 117 days 125 58 days 127** 109 days 9.4 days 129** 34 days 69 minutes 131** 1.2 days 25 minutes 132 78 hours 133** 50 minutes 12.5 minutes 134 42 minutes polonium* 192 0.5 second 193 4 seconds 194 0.5 second 195 3 seconds 196 6 seconds 197 54 seconds 198 1.7 minutes 199 5 minutes 200 11 minutes 201 15.1 minutes 202 45 minutes 203 42 minutes 204 3.6 hours 205 1.8 hours 206 8.8 days 207** 2.8 seconds 5.7 hours 208 2.93 years 209 103 years 210 138.4 days 211** 25 seconds 0.52 second 212 0.30(10−6) second 213 4(10−6) second 214 164(10−6) second 215 0.0018 second 216 0.15 second 217 less than 10 seconds 218 3.05 minutes *No stable isotopes.**Two isotopes. See as table:
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