Isotope van bohrium
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.
Oorsig wysig
| 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 | |
Isotope per element wysig
| 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 |
Bronne wysig
- R.B. Firestone, S.Y. Frank Chu & C.M. Baglin (1999) - Table of Isotopes (aanlyn weergawe van die CD-ROM)
- G. Audi, A.H. Wapstra, C. Thibault, J. Blachot & O. Bersillon (2003) - The NUBASE evaluation of nuclear and decay properties, Nuclear Physics A, 729, pp. 3-128
- J.R. de Laeter, J.K. Böhlke, P. De Bièvre, H. Hidaka, H.S. Peiser, K.J.R. Rosman & P.D.P. Taylor (2003) - Atomic weights of the elements. Review 2000 (IUPAC Technical Report), Pure and Applied Chemistry, 75 (6), pp. 683–800
- M.E. Wieser (2006) - Atomic weights of the elements 2005 (IUPAC Technical Report), Pure and Applied Chemistry, 78 (11), pp. 2051–2066
- David R. Lide (2004) - CRC Handbook of Chemistry and Physics (85ste uitg.), hoofstuk 11, CRC Press - ISBN 978-0849304859
Hierdie artikel is vertaal uit die Nederlandse Wikipedia
