レニウム(Re)の同位体のうち天然に存在するものは、天然存在比が37.4%の安定同位体である185Reと、62.6%の安定ではないが非常に長い半減期を持つ187Reである。他に26個の不安定な同位体が知られている。
標準原子量は186.207(1) uである。
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 |
| 160Re |
75 |
85 |
159.98212(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] |
|
|
|
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.
