Isotopes of Rutherfordium (Z=104)

Click on an isotope to get more information about its decay
Isotope Half-life Spin Parity Decay Mode(s) or Abundance
253Rf 1.8 s %SF ~ 50, %A ~ 50
253m1Rf 50 us
254Rf 0.5 ms0+ %SF=100, %A ~ 0.3 sys
254m1Rf 23 us
255Rf 1.5 s (9/2-) %SF=52 7, %A=48 7
256Rf 6.7 ms 0+ %SF=98 +2-7 , %A=2.2 +73-18
257Rf 4.7 s(7/2+) %A=79.6 20, %EC=18 2, %SF=2.4 3
258Rf 12 ms 0+ %SF ~ 87, %A ~ 13
259Rf 3.1 s %A=93 4, %SF=7 4, %EC ~ 0.3
260Rf 20.1 ms 0+ %SF=100
261Rf 65 s %A>80, %SF<10, %EC < 10 sys
262Rf 2.1 s0+ %SF=100
262m1Rf 47 ms[2+]
263Rf
264Rf 0+
Isotope Explorer Nuclear Structure and Decay Data
8th Edition of the Table of Isotopes
Isotopes Project Home Page
Lawrence Berkeley National Laboratory
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