Naturally occurring rhenium (Re) is 37. Rhenium (ˈriːniəm is a Chemical element with the symbol Re and Atomic number 75 4% 185Re, which is stable, and 62. Stable isotopes are chemical isotopes that are not Radioactive (to current knowledge 6% 187Re, which is unstable but has a very long half-life. A radionuclide is an Atom with an unstable nucleus, which is a nucleus characterized by excess energy which is available to be imparted either to a newly-created Half-Life (computer-game page here It's already listed in the disambiguation page There are twenty-six other unstable isotopes recognized.
Standard atomic mass: 186. 207(1) u
Table
| nuclide symbol |
Z(p) | N(n) | isotopic mass (u) |
half-life | nuclear spin |
representative isotopic composition (mole fraction) |
range of natural variation (mole fraction) |
|---|---|---|---|---|---|---|---|
| excitation energy | |||||||
| 160Re | 75 | 85 | 159. The unified atomic mass unit ( u) or Dalton ( Da) or sometimes universal mass unit, is an unit of Mass used to express The proton ( Greek πρῶτον / proton "first" is a Subatomic particle with an Electric charge of one positive This article is a discussion of neutrons in general For the specific case of a neutron found outside the nucleus see Free neutron. 98212(43)# | 860(120) µs [0. 82(+15-9) ms] | (2-) | ||
| 161Re | 75 | 86 | 160. 97759(22) | 0. 37(4) ms | 1/2+ | ||
| 161mRe | 123. 8(13) keV | 15. 6(9) ms | 11/2- | ||||
| 162Re | 75 | 87 | 161. 97600(22)# | 107(13) ms | (2-) | ||
| 162mRe | 173(10) keV | 77(9) ms | (9+) | ||||
| 163Re | 75 | 88 | 162. 972081(21) | 390(70) ms | (1/2+) | ||
| 163mRe | 115(4) keV | 214(5) ms | (11/2-) | ||||
| 164Re | 75 | 89 | 163. 97032(17)# | 0. 53(23) s | high | ||
| 164mRe | 120(120)# keV | 530(230) ms | (2#)- | ||||
| 165Re | 75 | 90 | 164. 967089(30) | 1# s | 1/2+# | ||
| 165mRe | 47(26) keV | 2. 1(3) s | 11/2-# | ||||
| 166Re | 75 | 91 | 165. 96581(9)# | 2# s | 2-# | ||
| 167Re | 75 | 92 | 166. 96260(6)# | 3. 4(4) s | 9/2-# | ||
| 167mRe | 130(40)# keV | 5. 9(3) s | 1/2+# | ||||
| 168Re | 75 | 93 | 167. 96157(3) | 4. 4(1) s | (5+,6+,7+) | ||
| 168mRe | non-exist | 6. 6(15) s | |||||
| 169Re | 75 | 94 | 168. 95879(3) | 8. 1(5) s | 9/2-# | ||
| 169mRe | 145(29) keV | 15. 1(15) s | 1/2+# | ||||
| 170Re | 75 | 95 | 169. 958220(28) | 9. 2(2) s | (5+) | ||
| 171Re | 75 | 96 | 170. 95572(3) | 15. 2(4) s | (9/2-) | ||
| 172Re | 75 | 97 | 171. 95542(6) | 15(3) s | (5) | ||
| 172mRe | 0(100)# keV | 55(5) s | (2) | ||||
| 173Re | 75 | 98 | 172. 95324(3) | 1. 98(26) min | (5/2-) | ||
| 174Re | 75 | 99 | 173. 95312(3) | 2. 40(4) min | |||
| 175Re | 75 | 100 | 174. 95138(3) | 5. 89(5) min | (5/2-) | ||
| 176Re | 75 | 101 | 175. 95162(3) | 5. 3(3) min | 3+ | ||
| 177Re | 75 | 102 | 176. 95033(3) | 14(1) min | 5/2- | ||
| 177mRe | 84. 71(10) keV | 50(10) µs | 5/2+ | ||||
| 178Re | 75 | 103 | 177. 95099(3) | 13. 2(2) min | (3+) | ||
| 179Re | 75 | 104 | 178. 949988(26) | 19. 5(1) min | (5/2)+ | ||
| 179m1Re | 65. 39(9) keV | 95(25) µs | (5/2-) | ||||
| 179m2Re | 1684. 59(14)+Y keV | >0. 4 µs | (23/2+) | ||||
| 180Re | 75 | 105 | 179. 950789(23) | 2. 44(6) min | (1)- | ||
| 181Re | 75 | 106 | 180. 950068(14) | 19. 9(7) h | 5/2+ | ||
| 182Re | 75 | 107 | 181. 95121(11) | 64. 0(5) h | 7+ | ||
| 182m1Re | 60(100) keV | 12. 7(2) h | 2+ | ||||
| 182m2Re | 235. 736(10)+X keV | 585(21) ns | 2- | ||||
| 182m3Re | 461. 3(1)+X keV | 0. 78(9) µs | (4-) | ||||
| 183Re | 75 | 108 | 182. 950820(9) | 70. 0(14) d | 5/2+ | ||
| 183mRe | 1907. 6(3) keV | 1. 04(4) ms | (25/2+) | ||||
| 184Re | 75 | 109 | 183. 952521(5) | 38. 0(5) d | 3(-) | ||
| 184mRe | 188. 01(4) keV | 169(8) d | 8(+) | ||||
| 185Re | 75 | 110 | 184. 9529550(13) | STABLE | 5/2+ | 0. 3740(2) | |
| 185mRe | 2124(2) keV | 123(23) ns | (21/2) | ||||
| 186Re | 75 | 111 | 185. 9549861(13) | 3. 7186(5) d | 1- | ||
| 186mRe | 149(7) keV | 2. 0(5)E+5 a | (8+) | ||||
| 187Re | 75 | 112 | 186. 9557531(15) | 41. 2(2)E+9 a | 5/2+ | 0. 6260(2) | |
| 188Re | 75 | 113 | 187. 9581144(15) | 17. 0040(22) h | 1- | ||
| 188mRe | 172. 069(9) keV | 18. 59(4) min | (6)- | ||||
| 189Re | 75 | 114 | 188. 959229(9) | 24. 3(4) h | 5/2+ | ||
| 190Re | 75 | 115 | 189. 96182(16) | 3. 1(3) min | (2)- | ||
| 190mRe | 210(50) keV | 3. 2(2) h | (6-) | ||||
| 191Re | 75 | 116 | 190. 963125(11) | 9. 8(5) min | (3/2+,1/2+) | ||
| 192Re | 75 | 117 | 191. 96596(21)# | 16(1) s | |||
| 193Re | 75 | 118 | 192. 96747(21)# | 30# s [>300 ns] | 5/2+# | ||
| 194Re | 75 | 119 | 193. 97042(32)# | 2# s [>300 ns] | |||
Notes
- Values marked # are not purely derived from experimental data, but at least partly from systematic trends. Spins with weak assignment arguments are enclosed in parentheses.
- Uncertainties are given in concise form in parentheses after the corresponding last digits. Uncertainty values denote one standard deviation, except isotopic composition and standard atomic mass from IUPAC which use expanded uncertainties.
References
- Isotope masses from Ame2003 Atomic Mass Evaluation by G. Audi, A. H. Wapstra, C. Thibault, J. Blachot and O. Bersillon in Nuclear Physics A729 (2003).
- Isotopic compositions and standard atomic masses from Atomic weights of the elements. Review 2000 (IUPAC Technical Report). Pure Appl. Chem. Vol. 75, No. 6, pp. 683-800, (2003) and Atomic Weights Revised (2005).
- Half-life, spin, and isomer data selected from these sources. Editing notes on this article's talk page.
- Audi, Bersillon, Blachot, Wapstra. The Nubase2003 evaluation of nuclear and decay properties, Nuc. Phys. A 729, pp. 3-128 (2003).
- National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the NuDat 2.1 database (retrieved Sept. 2005).
- David R. Lide (ed. ), Norman E. Holden in CRC Handbook of Chemistry and Physics, 85th Edition, online version. CRC Press. Boca Raton, Florida (2005). Section 11, Table of the Isotopes.
| Isotopes of tungsten | Isotopes of rhenium | Isotopes of osmium |
| Index to isotope pages · Table of nuclides | ||
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