none 

Statements about this table:
the half - life of 0.15 s be discover in 2003
the half - life discover in 2003 be 2 s
isotope
half - life
decay mode
discovery year
reaction
263 hs
0.74 ms
α , sf
2008
208 pb ( 56 fe , n)
264 hs
~0.8 ms
α , sf
1986
207 pb ( 58 fe , n)
265 hs
1.9 ms
α , sf
1984
208 pb ( 58 fe , n)
265 m hs
0.3 ms
α
1984
208 pb ( 58 fe , n)
266 hs
2.3 ms
α , sf
2000
270 ds (- , α)
267 hs
52 ms
α , sf
1995
238 u ( 34 s , 5n)
267 m hs
0.8 s
α
1995
238 u ( 34 s , 5n)
isotope
half - life
decay mode
discovery year
reaction
268 hs
0.4 s
α
2009
238 u ( 34 s , 4n)
269 hs
3.6 s
α
1996
277 cn (- , 2α)
269 m hs
9.7 s
α
2004
248 cm ( 26 mg , 5n)
270 hs
3.6 s
α
2004
248 cm ( 26 mg , 4n)
271 hs
~4 s
α
2004
248 cm ( 26 mg , 3n)
272 hs
40 s
α , sf
unknown
-
isotope
half - life
decay mode
discovery year
reaction
273 hs
0.24 s
α
2004
285 fl (- , 3α)
274 hs
1 min
α , sf
unknown
-
275 hs
0.15 s
α
2003
287 fl (- , 3α)
276 hs
1 h
α , sf
unknown
-
277 hs
2 s
α
2009
289 fl (- , 3α)
277 m hs
~11 min
α
1999
289 fl (- , 3α)