Isotopes of Dubnium (Z=105)

Click on an isotope to get more information about its decay
Isotope Half-life Spin Parity Decay Mode(s) or Abundance
255Db 1.6 s %A>47, %SF < 53
256Db 2.6 s %SF < 40, %A ~ 70, %EC ~ 10 sys
257Db 1.3 s %A=82 11, %SF=17 11, %EC=1 sys
258Db 4.4 s %A=67 +5-9 , %EC=33 +9-5, %SF<34
258m1Db 20 s %EC ~ 100
259Db
260Db 1.52 s %A > 90.4 10, %SF ~ 9.6 10, %EC<2.5
261Db 1.8 s %A>50, %SF<50
262Db 34 s %A ~ 64, %SF ~ 33, %EC ~ 3 sys
263Db 27 s %SF=57 15, %A=43 15
264Db
265Db
Isotope Explorer Nuclear Structure and Decay Data
8th Edition of the Table of Isotopes
Isotopes Project Home Page
Lawrence Berkeley National Laboratory
Return to Exploring the Isotopes