111-Roentgenium
Nuclide weight or level energy spin & parity abundance half-life sig(J32) sig(J33) sig(J40)
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Rg-272 272.153284 +- 0.000271 3.8MS +14 -8
Rg-274 274.155384 +- 0.000226 6MS +31 -3
Rg-278 278.161441 +- 0.000452 4.2MS +76 -17
Rg-279 279.162443 +- 0.000637 0.17S +81 -8
Rg-280 280.164656 +- 0.000586 3.6S +43 -13
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