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Die chemiese element bohrium (Bh), met ’n atoommassa van ongeveer 262,1229 u, het geen stabiele isotope nie en word dus as ’n radioaktiewe element geklassifiseer. Die 11 isotope is onstabiel en het ’n relatief kort halfleeftyd (die meeste minder as ’n sekonde).
In die natuur kom geen bohrium voor nie; alle isotope is sinteties in ’n laboratorium berei. Die eerste sintetiese isotoop was 262Bh, in 1981.
Die kortslewende isotoop van bohrium is 260Bh, met ’n halfleeftyd van ongeveer 0,3 millisekondes. Die langslewende een is 274Bh, met ’n halfleeftyd van 0,9 minute.
Nuklied | Z (p) | N (n) | Isotopiese massa (u) | Halfleeftyd | Radioaktiewe verval | VP | Kernspin |
---|---|---|---|---|---|---|---|
Opwekkingsenergie | |||||||
260Bh | 107 | 153 | 260,12197(62) | 0,3 ms | α | 256Db | |
261Bh | 107 | 154 | 261,12166(25) | 13(4) ms | α (95%) | 257Db | |
SS (5%) | |||||||
262Bh | 107 | 155 | 262,12289(37) | 290(160) ms | α (80%) | 258Db | |
SS (20%) | |||||||
262mBh | 300(60) keV | 14(4) ms | α (70%) | 258Db | |||
SS (30%) | |||||||
264Bh | 107 | 157 | 264,1246(3) | 1,3(5) s | α | 260Db | |
SS (selde) | |||||||
265Bh | 107 | 158 | 265,12515(41) | 0,9 s | α | 261Db | |
266Bh | 107 | 159 | 266,12694(22) | 5(3) s | α | 262Db | |
267Bh | 107 | 160 | 267,12765(28) | 22(10) s | α | 263Db | |
270Bh | 107 | 163 | 270,13362(50) | 30 s | α | 266Db | |
271Bh | 107 | 164 | 271,13518(60) | 40 s | α | 267Db | |
272Bh | 107 | 165 | 272,13803(65) | 10 s | α | 268Db | |
274Bh | 107 | 167 | 274,14244(84) | 0,9 min | α | 270Db |
1H | 2He | 3Li | 4Be | 5B | 6C | 7N | 8O | 9F | 10Ne | 11Na | 12Mg | 13Al | 14Si | 15P | 16S | 17Cl | 18Ar | 19K | |
20Ca | 21Sc | 22Ti | 23V | 24Cr | 25Mn | 26Fe | 27Co | 28Ni | 29Cu | 30Zn | 31Ga | 32Ge | 33As | 34Se | 35Br | 36Kr | 37Rb | 38Sr | 39Y |
40Zr | 41Nb | 42Mo | 43Tc | 44Ru | 45Rh | 46Pd | 47Ag | 48Cd | 49In | 50Sn | 51Sb | 52Te | 53I | 54Xe | 55Cs | 56Ba | 57La | 58Ce | 59Pr |
60Nd | 61Pm | 62Sm | 63Eu | 64Gd | 65Tb | 66Dy | 67Ho | 68Er | 69Tm | 70Yb | 71Lu | 72Hf | 73Ta | 74W | 75Re | 76Os | 77Ir | 78Pt | 79Au |
80Hg | 81Tl | 82Pb | 83Bi | 84Po | 85At | 86Rn | 87Fr | 88Ra | 89Ac | 90Th | 91Pa | 92U | 93Np | 94Pu | 95Am | 96Cm | 97Bk | 98Cf | 99Es |
100Fm | 101Md | 102No | 103Lr | 104Rf | 105Db | 106Sg | 107Bh | 108Hs | 109Mt | 110Ds | 111Rg | 112Cn | 113Nh | 114Fl | 115Mc | 116Lv | 117Ts | 118Og |
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