Isotope
|
Abundance
|
Half-life (t1/2)
|
Decay mode
|
Product
|
262No
|
syn
|
5 ms
|
SF
|
|
|
260No
|
syn
|
106 ms
|
SF
|
|
|
259No
|
syn
|
58m
|
75% α
|
7.69,7.61,7.53....
|
255Fm
|
25% ε
|
|
259Md
|
258No
|
syn
|
1.2 ms
|
SF
|
|
|
257No
|
syn
|
25 s
|
α
|
8.32,8.22
|
253Fm
|
256No
|
syn
|
2.91 s
|
99.5% α
|
8.45,8.40
|
252Fm
|
0.5% f
|
|
|
255No
|
syn
|
3.1 m
|
61% α
|
8.12,8.08,7.93
|
251Fm
|
39% ε
|
2.012
|
255Md
|
254Nom2
|
syn
|
198 µs
|
γ
|
|
254Nom1
|
254Nom1
|
syn
|
275 ms
|
γ
|
|
250Nog
|
254Nog
|
syn
|
51 s
|
|
|
|
253Nom
|
syn
|
43.5 µs
|
γ
|
|
253Nog
|
253No
|
syn
|
1.62 m
|
α
|
8.14,8.06,8.04,8.01
|
249Fm
|
252Nom
|
syn
|
110 ms
|
|
|
|
252Nog
|
syn
|
2.44 s
|
75% α
|
8.42,8.37
|
248Fm
|
25% SF
|
|
|
251No
|
syn
|
0.76 s
|
α
|
8.62,8.58
|
247Fm
|
250Nom
|
syn
|
43 µs
|
SF
|
|
|
250Nog
|
syn
|
3.7 µs
|
SF
|
|
| |