フランシウムの同位体
表示
フランシウム(Fr)は、安定同位体を持たないため標準原子量は定められない。
フランシウムの同位体のうち、アクチニウム系列に属する同位体は以下の別名でも知られている:
- アクチニウムK (actinium K) : 223Fr
一覧
[編集]同位体核種 | Z(p) | N(n) | 同位体質量 (u) | 半減期 | 核スピン数 | 天然存在比 | 天然存在比 (範囲) |
---|---|---|---|---|---|---|---|
励起エネルギー | |||||||
199Fr | 87 | 112 | 199.00726(4) | 16(7) ms | 1/2+# | ||
200Fr | 87 | 113 | 200.00657(8) | 24(10) ms | 3+# | ||
200mFr | 60(110) keV | 650(210) ms | 10-# | ||||
201Fr | 87 | 114 | 201.00386(8) | 67(3) ms | (9/2-) | ||
202Fr | 87 | 115 | 202.00337(5) | 290(30) ms | (3+) | ||
202mFr | 330(90)# keV | 340(40) ms | (10-) | ||||
203Fr | 87 | 116 | 203.000925(17) | 0.55(2) s | (9/2-)# | ||
204Fr | 87 | 117 | 204.000653(26) | 1.7(3) s | (3+) | ||
204m1Fr | 50(4) keV | 2.6(3) s | (7+) | ||||
204m2Fr | 326(4) keV | 1.7(6) s | (10-) | ||||
205Fr | 87 | 118 | 204.998594(8) | 3.80(3) s | (9/2-) | ||
206Fr | 87 | 119 | 205.99867(3) | ~16 s | (2+,3+) | ||
206m1Fr | 190(40) keV | 15.9(1) s | (7+) | ||||
206m2Fr | 730(40) keV | 700(100) ms | (10-) | ||||
207Fr | 87 | 120 | 206.99695(5) | 14.8(1) s | 9/2- | ||
208Fr | 87 | 121 | 207.99714(5) | 59.1(3) s | 7+ | ||
209Fr | 87 | 122 | 208.995954(16) | 50.0(3) s | 9/2- | ||
210Fr | 87 | 123 | 209.996408(24) | 3.18(6) min | 6+ | ||
211Fr | 87 | 124 | 210.995537(23) | 3.10(2) min | 9/2- | ||
212Fr | 87 | 125 | 211.996202(28) | 20.0(6) min | 5+ | ||
213Fr | 87 | 126 | 212.996189(8) | 34.6(3) s | 9/2- | ||
214Fr | 87 | 127 | 213.998971(9) | 5.0(2) ms | (1-) | ||
214m1Fr | 123(6) keV | 3.35(5) ms | (8-) | ||||
214m2Fr | 638(6) keV | 103(4) ns | (11+) | ||||
214m3Fr | 6477+Y keV | 108(7) ns | (33+) | ||||
215Fr | 87 | 128 | 215.000341(8) | 86(5) ns | 9/2- | ||
216Fr | 87 | 129 | 216.003198(15) | 0.70(2) µs | (1-) | ||
217Fr | 87 | 130 | 217.004632(7) | 16.8(19) µs | 9/2- | ||
218Fr | 87 | 131 | 218.007578(5) | 1.0(6) ms | 1- | ||
218m1Fr | 86(4) keV | 22.0(5) ms | |||||
218m2Fr | 200(150)# keV | high | |||||
219Fr | 87 | 132 | 219.009252(8) | 20(2) ms | 9/2- | ||
220Fr | 87 | 133 | 220.012327(4) | 27.4(3) s | 1+ | ||
221Fr | 87 | 134 | 221.014255(5) | 4.9(2) min | 5/2- | ||
222Fr | 87 | 135 | 222.017552(23) | 14.2(3) min | 2- | ||
223Fr | 87 | 136 | 223.0197359(26) | 22.00(7) min | 3/2(-) | ||
224Fr | 87 | 137 | 224.02325(5) | 3.33(10) min | 1- | ||
225Fr | 87 | 138 | 225.02557(3) | 4.0(2) min | 3/2- | ||
226Fr | 87 | 139 | 226.02939(11) | 49(1) s | 1- | ||
227Fr | 87 | 140 | 227.03184(11) | 2.47(3) min | 1/2+ | ||
228Fr | 87 | 141 | 228.03573(22)# | 38(1) s | 2- | ||
229Fr | 87 | 142 | 229.03845(4) | 50.2(4) s | (1/2+)# | ||
230Fr | 87 | 143 | 230.04251(48)# | 19.1(5) s | |||
231Fr | 87 | 144 | 231.04544(50)# | 17.6(6) s | (1/2+)# | ||
232Fr | 87 | 145 | 232.04977(69)# | 5(1) s |
参考文献
[編集]- 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.
1H | 2He |
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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 | *1 | 72Hf | 73Ta | 74W | 75Re | 76Os | 77Ir | 78Pt | 79Au | 80Hg | 81Tl | 82Pb | 83Bi | 84Po | 85At | 86Rn | ||||||||||
87Fr | 88Ra | *2 | 104Rf | 105Db | 106Sg | 107Bh | 108Hs | 109Mt | 110Ds | 111Rg | 112Cn | 113Nh | 114Fl | 115Mc | 116Lv | 117Ts | 118Og | ||||||||||
*1 | 57La | 58Ce | 59Pr | 60Nd | 61Pm | 62Sm | 63Eu | 64Gd | 65Tb | 66Dy | 67Ho | 68Er | 69Tm | 70Yb | 71Lu | ||||||||||||
*2 | 89Ac | 90Th | 91Pa | 92U | 93Np | 94Pu | 95Am | 96Cm | 97Bk | 98Cf | 99Es | 100Fm | 101Md | 102No | 103Lr | ||||||||||||
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