ハフニウム(Hf)の標準原子量は178.49(2) 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 |
| 153Hf |
72 |
81 |
152.97069(54)# |
400# ms [>200 ns] |
1/2+# |
|
|
| 153mHf |
750(100)# keV |
500# ms |
11/2-# |
|
|
| 154Hf |
72 |
82 |
153.96486(54)# |
2(1) s |
0+ |
|
|
| 155Hf |
72 |
83 |
154.96339(43)# |
890(120) ms |
7/2-# |
|
|
| 156Hf |
72 |
84 |
155.95936(22) |
23(1) ms |
0+ |
|
|
| 156mHf |
1959.0(10) keV |
480(40) µs |
8+ |
|
|
| 157Hf |
72 |
85 |
156.95840(21)# |
115(1) ms |
7/2- |
|
|
| 158Hf |
72 |
86 |
157.954799(19) |
2.84(7) s |
0+ |
|
|
| 159Hf |
72 |
87 |
158.953995(18) |
5.20(10) s |
7/2-# |
|
|
| 160Hf |
72 |
88 |
159.950684(12) |
13.6(2) s |
0+ |
|
|
| 161Hf |
72 |
89 |
160.950275(24) |
18.2(5) s |
3/2-# |
|
|
| 162Hf |
72 |
90 |
161.94721(1) |
39.4(9) s |
0+ |
|
|
| 163Hf |
72 |
91 |
162.94709(3) |
40.0(6) s |
3/2-# |
|
|
| 164Hf |
72 |
92 |
163.944367(22) |
111(8) s |
0+ |
|
|
| 165Hf |
72 |
93 |
164.94457(3) |
76(4) s |
(5/2-) |
|
|
| 166Hf |
72 |
94 |
165.94218(3) |
6.77(30) min |
0+ |
|
|
| 167Hf |
72 |
95 |
166.94260(3) |
2.05(5) min |
(5/2)- |
|
|
| 168Hf |
72 |
96 |
167.94057(3) |
25.95(20) min |
0+ |
|
|
| 169Hf |
72 |
97 |
168.94126(3) |
3.24(4) min |
(5/2)- |
|
|
| 170Hf |
72 |
98 |
169.93961(3) |
16.01(13) h |
0+ |
|
|
| 171Hf |
72 |
99 |
170.94049(3) |
12.1(4) h |
7/2(+) |
|
|
| 171mHf |
21.93(9) keV |
29.5(9) s |
1/2(-) |
|
|
| 172Hf |
72 |
100 |
171.939448(26) |
1.87(3) a |
0+ |
|
|
| 172mHf |
2005.58(11) keV |
163(3) ns |
(8-) |
|
|
| 173Hf |
72 |
101 |
172.94051(3) |
23.6(1) h |
1/2- |
|
|
| 174Hf |
72 |
102 |
173.940046(3) |
2.0(4)E+15 a |
0+ |
0.0016(1) |
0.001619-0.001621 |
| 174m1Hf |
1549.3 keV |
138(4) ns |
(6+) |
|
|
| 174m2Hf |
1797.5(20) keV |
2.39(4) µs |
(8-) |
|
|
| 174m3Hf |
1797.5 keV |
2.39(4) µs |
(8-) |
|
|
| 174m4Hf |
3311.7 keV |
3.7(2) µs |
(14+) |
|
|
| 175Hf |
72 |
103 |
174.941509(3) |
70(2) d |
5/2- |
|
|
| 176Hf |
72 |
104 |
175.9414086(24) |
STABLE |
0+ |
0.0526(7) |
0.05206-0.05271 |
| 177Hf |
72 |
105 |
176.9432207(23) |
STABLE |
7/2- |
0.1860(9) |
0.18593-0.18606 |
| 177m1Hf |
1315.4504(8) keV |
1.09(5) s |
23/2+ |
|
|
| 177m2Hf |
1342.38(20) keV |
55.9(12) µs |
(19/2-) |
|
|
| 177m3Hf |
2740.02(15) keV |
51.4(5) min |
37/2- |
|
|
| 178Hf |
72 |
106 |
177.9436988(23) |
STABLE |
0+ |
0.2728(7) |
0.27278-0.27297 |
| 178m1Hf |
1147.423(5) keV |
4.0(2) s |
8- |
|
|
| 178m2Hf |
2573.5(5) keV |
68(2) µs |
(14-) |
|
|
| 178m3Hf |
2445.69(11) keV |
31(1) a |
16+ |
|
|
| 179Hf |
72 |
107 |
178.9458161(23) |
STABLE |
9/2+ |
0.1362(2) |
0.13619-0.1363 |
| 179m1Hf |
375.0367(25) keV |
18.67(4) s |
1/2- |
|
|
| 179m2Hf |
1105.84(19) keV |
25.05(25) d |
25/2- |
|
|
| 180Hf |
72 |
108 |
179.9465500(23) |
STABLE |
0+ |
0.3508(16) |
0.35076-0.351 |
| 180m1Hf |
1141.48(4) keV |
5.47(4) h |
8- |
|
|
| 180m2Hf |
1374.15(4) keV |
0.57(2) µs |
(4-) |
|
|
| 180m3Hf |
2425.8(10) keV |
15(5) µs |
(10+) |
|
|
| 180m4Hf |
2486.3(9) keV |
10(1) µs |
12+ |
|
|
| 180m5Hf |
2538.3(12) keV |
>10 µs |
(14+) |
|
|
| 180m6Hf |
3599.3(18) keV |
90(10) µs |
(18-) |
|
|
| 181Hf |
72 |
109 |
180.9491012(23) |
42.39(6) d |
1/2- |
|
|
| 181m1Hf |
595(3) keV |
80(5) µs |
(9/2+) |
|
|
| 181m2Hf |
1040(10) keV |
~100 µs |
(17/2+) |
|
|
| 181m3Hf |
1738(10) keV |
1.5(5) ms |
(27/2-) |
|
|
| 182Hf |
72 |
110 |
181.950554(7) |
8.90(9)E+6 a |
0+ |
|
|
| 182mHf |
1172.88(18) keV |
61.5(15) min |
8- |
|
|
| 183Hf |
72 |
111 |
182.95353(3) |
1.067(17) h |
(3/2-) |
|
|
| 184Hf |
72 |
112 |
183.95545(4) |
4.12(5) h |
0+ |
|
|
| 184mHf |
1272.4(4) keV |
48(10) s |
8- |
|
|
| 185Hf |
72 |
113 |
184.95882(21)# |
3.5(6) min |
3/2-# |
|
|
| 186Hf |
72 |
114 |
185.96089(32)# |
2.6(12) min |
0+ |
|
|
| 187Hf |
72 |
115 |
186.96459(43)# |
30# s [>300 ns] |
|
|
|
| 188Hf |
72 |
116 |
187.96685(54)# |
20# s [>300 ns] |
0+ |
|
|
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.
