Isotope van rutherfordiums TDn)7x bą́Ee
Die chemiese element rutherfordium (Rf), met ’n atoommassa van ongeveer 262 u, het geen stabiele isotope nie en word dus as ’n radioaktiewe element geklassifiseer. Die 15 isotope is onstabiel en het ’n relatief kort halfleeftyd (die meeste minder as ’n sekonde). Van dié isotope is die bestaan van 266Rf en 268Rf nog nie bevestig nie.
In die natuur kom geen rutherfordium voor nie; alle isotope is sinteties in ’n laboratorium berei. Die eerste sintetiese isotoop was 259Rf, in 1966.
Die kortslewende isotoop van rutherfordium is 254Rf, met ’n halfleeftyd van ongeveer 23 mikrosekondes. Die langslewende een is 267Rf, met ’n halfleeftyd van 5 uur.
Oorsig[wysig | wysig bron]
| Nuklied | Z (p) | N (n) | Isotopiese massa (u) | Halfleeftyd | Radioaktiewe verval | VP | Kernspin |
|---|---|---|---|---|---|---|---|
| Opwekkingsenergie | |||||||
| 253Rf | 104 | 149 | 253,10069(49) | 13(5) ms | SS (51%) | (7/2+) | |
| α (49%) | 249No | ||||||
| 253mRf | 200(150) keV | 52(14) µs | (1/2-) | ||||
| 254Rf | 104 | 150 | 254,10018(31) | 23(3) µs | SS (99,7%) | 0+ | |
| α (0,3%) | 250No | ||||||
| 255Rf | 104 | 151 | 255,10134(19) | 1,64(11) s | SS (52%) | (9/2-) | |
| α (48%) | 251No | ||||||
| 256Rf | 104 | 152 | 256,101166(26) | 6,45(14) ms | SS (96%) | 0+ | |
| α (6%) | 252No | ||||||
| 257Rf | 104 | 153 | 257,10299(11) | 4,7(3) s | α (79%) | 253No | (1/2+) |
| β+ (18%) | 257Lr | ||||||
| SS (2,4%) | |||||||
| 257mRf | 114(17) keV | 3,9(4) s | (11/2-) | ||||
| 258Rf | 104 | 154 | 258,10349(22) | 12(2) ms | SS (87%) | 0+ | |
| α (13%) | 254No | ||||||
| 259Rf | 104 | 155 | 259,10564(8) | 2,8(4) s | α (93%) | 255No | 7/2+ |
| SS (7%) | |||||||
| β+ (0,3%) | 259Lr | ||||||
| 260Rf | 104 | 156 | 260,10644(22) | 21(1) ms | SS (98%) | 0+ | |
| α (2%) | 256No | ||||||
| 261Rf | 104 | 157 | 261,10877(3) | 5,5(25) s | α (76%) | 257No | 3/2+ |
| β+ (14%) | 261Lr | ||||||
| SS (10%) | |||||||
| 261mRf | 70(100) keV | 81(9) s | β+ | 261Lr | 9/2+ | ||
| α (selde) | 257No | ||||||
| 262Rf | 104 | 158 | 262,10993(30) | 2,3(4) s | SS (99,2%) | 0+ | |
| α (0,8%) | 258No | ||||||
| 262mRf | 600(400) keV | 47(5) ms | SS | ||||
| 263Rf | 104 | 159 | 263,11255(20) | 11(3) min | SS (70%) | 3/2+ | |
| α (30%) | 259No | ||||||
| 265Rf | 104 | 161 | 2,5 min | SS | |||
| 266Rf | 104 | 162 | 266,11796(58) | 10 uur | 0+ | ||
| 267Rf | 104 | 163 | 267,12153(62) | 5 uur | SS | ||
| 268Rf | 104 | 164 | 268,12364(76) | 1 uur | 0+ | ||
Isotope per element[wysig | wysig bron]
| 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 | wysig bron]
- 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
Hierdie artikel is vertaal uit die Nederlandse Wikipedia