109-Meitnerium
Nuclide weight or level energy spin & parity abundance half-life sig(J32) sig(J33) sig(J40)
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Mt-266 266.137376 +- 0.000329 1.7MS +18 -16
Mt-266 m 1.23000E+03 keV 6MS 3
Mt-268 268.138392 +- 0.000248 0.07S +10 -3
Mt-270 270.140459 +- 0.000219 5.0MS +24 -3
Mt-274 274.147193 +- 0.000449 0.45S +81 -18
Mt-275 275.148542 +- 0.000635 10MS +50 -5
Mt-276 276.151219 +- 0.000573 0.72S +87 -25
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