Table
| nuclide symbol |
Z(p) | N(n) | isotopic mass (u) |
half-life | decay mode(s) |
daughter isotope(s) |
nuclear spin |
representative isotopic composition (mole fraction) |
range of natural variation (mole fraction) |
|---|---|---|---|---|---|---|---|---|---|
| excitation energy | |||||||||
| 155Ta | 73 | 82 | 154.97459(54)# | 13(4) µs |
(11/2−) | ||||
| 156Ta | 73 | 83 | 155.97230(43)# | 144(24) ms | β+ (95.8%) | 156Hf | (2−) | ||
| p (4.2%) | 155Hf | ||||||||
| 156mTa | 102(7) keV | 0.36(4) s | p | 155Hf | 9+ | ||||
| 157Ta | 73 | 84 | 156.96819(22) | 10.1(4) ms | α (91%) | 153Lu | 1/2+ | ||
| β+ (9%) | 157Hf | ||||||||
| 157m1Ta | 22(5) keV | 4.3(1) ms | 11/2− | ||||||
| 157m2Ta | 1593(9) keV | 1.7(1) ms | α | 153Lu | (25/2−) | ||||
| 158Ta | 73 | 85 | 157.96670(22)# | 49(8) ms | α (96%) | 154Lu | (2−) | ||
| β+ (4%) | 158Hf | ||||||||
| 158mTa | 141(9) keV | 36.0(8) ms | α (93%) | 154Lu | (9+) | ||||
| IT | 158Ta | ||||||||
| β+ | 158Hf | ||||||||
| 159Ta | 73 | 86 | 158.963018(22) | 1.04(9) s | β+ (66%) | 159Hf | (1/2+) | ||
| α (34%) | 155Lu | ||||||||
| 159mTa | 64(5) keV | 514(9) ms | α (56%) | 155Lu | (11/2−) | ||||
| β+ (44%) | 159Hf | ||||||||
| 160Ta | 73 | 87 | 159.96149(10) | 1.70(20) s | α | 156Lu | (2#)− | ||
| β+ | 160Hf | ||||||||
| 160mTa | 310(90)# keV | 1.55(4) s | β+ (66%) | 160Hf | (9)+ | ||||
| α (34%) | 156Lu | ||||||||
| 161Ta | 73 | 88 | 160.95842(6)# | 3# s | β+ (95%) | 161Hf | 1/2+# | ||
| α (5%) | 157Lu | ||||||||
| 161mTa | 50(50)# keV | 2.89(12) s | 11/2−# | ||||||
| 162Ta | 73 | 89 | 161.95729(6) | 3.57(12) s | β+ (99.92%) | 162Hf | 3+# | ||
| α (.073%) | 158Lu | ||||||||
| 163Ta | 73 | 90 | 162.95433(4) | 10.6(18) s | β+ (99.8%) | 163Hf | 1/2+# | ||
| α (.2%) | 159Lu | ||||||||
| 164Ta | 73 | 91 | 163.95353(3) | 14.2(3) s | β+ | 164Hf | (3+) | ||
| 165Ta | 73 | 92 | 164.950773(19) | 31.0(15) s | β+ | 165Hf | 5/2−# | ||
| 165mTa | 60(30) keV | 9/2−# | |||||||
| 166Ta | 73 | 93 | 165.95051(3) | 34.4(5) s | β+ | 166Hf | (2)+ | ||
| 167Ta | 73 | 94 | 166.94809(3) | 1.33(7) min | β+ | 167Hf | (3/2+) | ||
| 168Ta | 73 | 95 | 167.94805(3) | 2.0(1) min | β+ | 168Hf | (2−,3+) | ||
| 169Ta | 73 | 96 | 168.94601(3) | 4.9(4) min | β+ | 169Hf | (5/2+) | ||
| 170Ta | 73 | 97 | 169.94618(3) | 6.76(6) min | β+ | 170Hf | (3)(+#) | ||
| 171Ta | 73 | 98 | 170.94448(3) | 23.3(3) min | β+ | 171Hf | (5/2−) | ||
| 172Ta | 73 | 99 | 171.94490(3) | 36.8(3) min | β+ | 172Hf | (3+) | ||
| 173Ta | 73 | 100 | 172.94375(3) | 3.14(13) h | β+ | 173Hf | 5/2− | ||
| 174Ta | 73 | 101 | 173.94445(3) | 1.14(8) h | β+ | 174Hf | 3+ | ||
| 175Ta | 73 | 102 | 174.94374(3) | 10.5(2) h | β+ | 175Hf | 7/2+ | ||
| 176Ta | 73 | 103 | 175.94486(3) | 8.09(5) h | β+ | 176Hf | (1)− | ||
| 176m1Ta | 103.0(10) keV | 1.1(1) ms | IT | 176Ta | (+) | ||||
| 176m2Ta | 1372.6(11)+X keV | 3.8(4) µs | (14−) | ||||||
| 176m3Ta | 2820(50) keV | 0.97(7) ms | (20−) | ||||||
| 177Ta | 73 | 104 | 176.944472(4) | 56.56(6) h | β+ | 177Hf | 7/2+ | ||
| 177m1Ta | 73.36(15) keV | 410(7) ns | 9/2− | ||||||
| 177m2Ta | 186.15(6) keV | 3.62(10) µs | 5/2− | ||||||
| 177m3Ta | 1355.01(19) keV | 5.31(25) µs | 21/2− | ||||||
| 177m4Ta | 4656.3(5) keV | 133(4) µs | 49/2− | ||||||
| 178Ta | 73 | 105 | 177.945778(16) | 9.31(3) min | β+ | 178Hf | 1+ | ||
| 178m1Ta | 100(50)# keV | 2.36(8) h | β+ | 178Hf | (7)− | ||||
| 178m2Ta | 1570(50)# keV | 59(3) ms | (15−) | ||||||
| 178m3Ta | 3000(50)# keV | 290(12) ms | (21−) | ||||||
| 179Ta | 73 | 106 | 178.9459295(23) | 1.82(3) a | EC | 179Hf | 7/2+ | ||
| 179m1Ta | 30.7(1) keV | 1.42(8) µs | (9/2)− | ||||||
| 179m2Ta | 520.23(18) keV | 335(45) ns | (1/2)+ | ||||||
| 179m3Ta | 1252.61(23) keV | 322(16) ns | (21/2−) | ||||||
| 179m4Ta | 1317.3(4) keV | 9.0(2) ms | IT | 179Ta | (25/2+) | ||||
| 179m5Ta | 1327.9(4) keV | 1.6(4) µs | (23/2−) | ||||||
| 179m6Ta | 2639.3(5) keV | 54.1(17) ms | (37/2+) | ||||||
| 180Ta | 73 | 107 | 179.9474648(24) | 8.152(6) h | EC (86%) | 180Hf | 1+ | ||
| β- (14%) | 180W | ||||||||
| 180m1Ta | 77.1(8) keV | Observationally Stable | 9− | 1.2(2)×10−4 | |||||
| 180m2Ta | 1452.40(18) keV | 31.2(14) µs | 15− | ||||||
| 180m3Ta | 3679.0(11) keV | 2.0(5) µs | (22−) | ||||||
| 180m4Ta | 4171.0+X keV | 17(5) µs | (23,24,25) | ||||||
| 181Ta | 73 | 108 | 180.9479958(19) | Observationally Stable | 7/2+ | 0.99988(2) | |||
| 181m1Ta | 6.238(20) keV | 6.05(12) µs | 9/2− | ||||||
| 181m2Ta | 615.21(3) keV | 18(1) µs | 1/2+ | ||||||
| 181m3Ta | 1485(3) keV | 25(2) µs | 21/2− | ||||||
| 181m4Ta | 2230(3) keV | 210(20) µs | 29/2− | ||||||
| 182Ta | 73 | 109 | 181.9501518(19) | 114.43(3) d | β- | 182W | 3− | ||
| 182m1Ta | 16.263(3) keV | 283(3) ms | IT | 182Ta | 5+ | ||||
| 182m2Ta | 519.572(18) keV | 15.84(10) min | 10− | ||||||
| 183Ta | 73 | 110 | 182.9513726(19) | 5.1(1) d | β- | 183W | 7/2+ | ||
| 183mTa | 73.174(12) keV | 107(11) ns | 9/2− | ||||||
| 184Ta | 73 | 111 | 183.954008(28) | 8.7(1) h | β- | 184W | (5−) | ||
| 185Ta | 73 | 112 | 184.955559(15) | 49.4(15) min | β- | 185W | (7/2+)# | ||
| 185mTa | 1308(29) keV | >1 ms | (21/2−) | ||||||
| 186Ta | 73 | 113 | 185.95855(6) | 10.5(3) min | β- | 186W | (2−,3−) | ||
| 186mTa | 1.54(5) min | ||||||||
| 187Ta | 73 | 114 | 186.96053(21)# | 2# min |
β- | 187W | 7/2+# | ||
| 188Ta | 73 | 115 | 187.96370(21)# | 20# s |
β- | 188W | |||
| 189Ta | 73 | 116 | 188.96583(32)# | 3# s |
7/2+# | ||||
| 190Ta | 73 | 117 | 189.96923(43)# | 0.3# s | |||||
Read more about this topic: Isotopes Of Tantalum
Famous quotes containing the word table:
“The table kills more people than war does.”
—Catalan proverb, quoted in Colman Andrews, Catalan Cuisine.
“Language was vigorous because, because ... editors usually “laid all the cards on the table so as to leave their hands ... free for more persuasive arguments!” The citizenry at large retaliated as best they could.”
—State of Utah, U.S. public relief program (1935-1943)
“A man who can dominate a London dinner table can dominate the world. The future belongs to the dandy. It is the exquisites who are going to rule.”
—Oscar Wilde (1854–1900)