Dubnium Isotopes
Proton number: 105
Stable Isotopes
There is no Dubnium Stable isotopes known
Natural Radioactive isotopes
There is no Dubnium Natural Radioactive isotopes known
Artificial Radioactive isotopes
Dubnium radioactive isotope number 1: 255Db | | Neutrons: | 150; | | Jn: | Unknown; | | Decay: | α ~ 80.00 %
SF ~ 20.00 %; | | t1/2: | 1.6s ; |
Dubnium radioactive isotope number 2: 256Db | | Neutrons: | 151; | | Jn: | Unknown; | | Decay: | α ~ 64.00 %
ε ~ 36.00 %
SF ~ 0.02 %; | | t1/2: | 1.6s ; |
Dubnium radioactive isotope number 3: 257Db | | Neutrons: | 152; | | Jn: | Unknown; | | Decay: | α > 94.00 %
SF < 6.00 %; | | t1/2: | 1.5s ; |
Dubnium radioactive isotope number 4: 257Db | | Neutrons: | 152; | | Jn: | Unknown; | | Decay: | α ≥ 87.00 %
SF ≤ 13.00 %; | | t1/2: | 0.76s ; |
Dubnium radioactive isotope number 5: 258Db | | Neutrons: | 153; | | Jn: | Unknown; | | Decay: | α : 67.00 %
ε : 33.00 %
SF < 1.00 %; | | t1/2: | 4s ; |
Dubnium radioactive isotope number 6: 258Db | | Neutrons: | 153; | | Jn: | Unknown; | | Decay: | ε ~ 100.00 %; | | t1/2: | 20s ; |
Dubnium radioactive isotope number 7: 259Db | | Neutrons: | 154; | | Jn: | Unknown; | | Decay: | α; | | t1/2: | 0.51s ; |
Dubnium radioactive isotope number 8: 260Db | | Neutrons: | 155; | | Jn: | Unknown; | | Decay: | α ≥ 90.40 %
SF ≤ 9.60 %
ε < 2.50 %; | | t1/2: | 1.52s ; |
Dubnium radioactive isotope number 9: 261Db | | Neutrons: | 156; | | Jn: | Unknown; | | Decay: | α ≥ 82.00 %
SF ≤ 18.00 %; | | t1/2: | 1.8s ; |
Dubnium radioactive isotope number 10: 262Db | | Neutrons: | 157; | | Jn: | Unknown; | | Decay: | α ~ 67.00 %
SF; | | t1/2: | 35s ; |
Dubnium radioactive isotope number 11: 263Db | | Neutrons: | 158; | | Jn: | Unknown; | | Decay: | SF : 55.00 %
α : 41.00 %
ε : 3.00 %; | | t1/2: | 27s ; |
Dubnium radioactive isotope number 12: 264Db | | Neutrons: | 159; | | Jn: | Unknown; | | Decay: | α ?; | | t1/2: | 180s ≈ 3.00 m; |
Dubnium radioactive isotope number 13: 265Db | | Neutrons: | 160; | | Jn: | Unknown; | | Decay: | α ?; | | t1/2: | 900s ≈ 15.00 m; |
Dubnium radioactive isotope number 14: 266Db | | Neutrons: | 161; | | Jn: | Unknown; | | Decay: | SF ?
α ?; | | t1/2: | 1200s ≈ 20.00 m; |
Dubnium radioactive isotope number 15: 267Db | | Neutrons: | 162; | | Jn: | Unknown; | | Decay: | SF ~ 100.00 %; | | t1/2: | 4380s ≈ 1.22 h; |
Dubnium radioactive isotope number 16: 268Db | | Neutrons: | 163; | | Jn: | Unknown; | | Decay: | SF ~ 100.00 %; | | t1/2: | 115200s ≈ 32.00 h; |
Dubnium radioactive isotope number 17: 269Db | | Neutrons: | 164; | | Jn: | Unknown; | | Decay: | α ?
SF ?; | | t1/2: | 10800s ≈ 3.00 h; |
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