Bohrium
Isotopes
Table:
List of bohrium isotopes

Isotope

Half-life
[18][19]
Decay
mode[18][19]
Discovery
year
Reaction

260Bh
35 ms
α
2007
209Bi(52Cr,n)[20]

261Bh
11.8 ms
α
1986
209Bi(54Cr,2n)[21]

262Bh
84 ms
α
1981
209Bi(54Cr,n)[13]

262mBh
9.6 ms
α
1981
209Bi(54Cr,n)[13]

264Bh
0.97 s
α
1994
272Rg(—,2α)[22]

265Bh
0.9 s
α
2004
243Am(26Mg,4n)[23]

266Bh
0.9 s
α
2000
249Bk(22Ne,5n)[24]

267Bh
17 s
α
2000
249Bk(22Ne,4n)[24]

270Bh
61 s
α
2006
282Nh(—,3α)[25]

271Bh
1.2 s
α
2003
287Mc(—,4α)[25]

272Bh
9.8 s
α
2005
288Mc(—,4α)[25]

274Bh
40 s
α
2009
294Ts(—,5α)[26]

278Bh
11.5 min?
SF
1998?
290Fl(e−,νe3α)?

Considering the table titled Bohrium, section Isotopes, provide an answer in a short sentence to the question below: What are the half-lives of the Bohrium isotopes ²⁷⁰Bh and ²⁷⁴Bh? Respond with the correct answer in JSON format as {"answer": "YOUR ANSWER"}.

answer: The Bohrium isotopes ²⁷⁰Bh and ²⁷⁴Bh have an half-lives of about 61 s and 40 s.