Isotope
|
Abundance
|
Half-life (t1/2)
|
Decay mode
|
Product
|
---|
262Lr
|
syn
|
3.6 h
|
EC
|
|
262No
| 261Lr
|
syn
|
44 m
|
SF/EC?
|
|
| 260Lr
|
syn
|
2.7 m
|
alpha
|
8.04
|
256Md
| 259Lr
|
syn
|
6.2 s
|
78% alpha
|
8.44
|
255Md
| 22% SF
|
|
| 258Lr
|
syn
|
4.1 s
|
alpha
|
8.68,8.65,8.62,8.59
|
254Md
| 257Lr
|
syn
|
0.65 s
|
alpha
|
8.86,8.80
|
253Md
| 256Lr
|
syn
|
27 s
|
alpha
|
8.62,8.52,8.32...
|
252Md
| 255Lr
|
syn
|
21.5 s
|
alpha
|
8.43,8.37
|
251Md
| 254Lr
|
syn
|
13 s
|
78% alpha
|
8.46,8.41
|
250Md
| 22% EC
|
|
254No
| 253Lrm |
syn
|
0.57 s
|
alpha
|
8.79
|
249Md
| 253Lrg |
syn
|
1.49 s
|
92% alpha
|
8.72
|
249Md
| 8% SF
|
|
| 252Lr
|
syn
|
0.36 s
|
alpha
|
9.02,8.97
|
248Md
|
|