Table
| nuclide symbol |
historic name |
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 | ||||||||||
| 206Ac | 89 | 117 | 206.01450(8) | 25(7) ms | (3+) | |||||
| 206m1Ac | 80(50) keV | 15(6) ms | ||||||||
| 206m2Ac | 290(110)# keV | 41(16) ms | (10-) | |||||||
| 207Ac | 89 | 118 | 207.01195(6) | 31(8) ms |
α | 203Fr | 9/2-# | |||
| 208Ac | 89 | 119 | 208.01155(6) | 97(16) ms |
α (99%) | 204Fr | (3+) | |||
| β+ (1%) | 208Ra | |||||||||
| 208mAc | 506(26) keV | 28(7) ms |
α (89%) | 204Fr | (10-) | |||||
| IT (10%) | 208Ac | |||||||||
| β+ (1%) | 208Ra | |||||||||
| 209Ac | 89 | 120 | 209.00949(5) | 92(11) ms | α (99%) | 205Fr | (9/2-) | |||
| β+ (1%) | 209Ra | |||||||||
| 210Ac | 89 | 121 | 210.00944(6) | 350(40) ms | α (96%) | 206Fr | 7+# | |||
| β+ (4%) | 210Ra | |||||||||
| 211Ac | 89 | 122 | 211.00773(8) | 213(25) ms | α (99.8%) | 207Fr | 9/2-# | |||
| β+ (.2%) | 211Ra | |||||||||
| 212Ac | 89 | 123 | 212.00781(7) | 920(50) ms | α (97%) | 208Fr | 6+# | |||
| β+ (3%) | 212Ra | |||||||||
| 213Ac | 89 | 124 | 213.00661(6) | 731(17) ms | α | 209Fr | (9/2-)# | |||
| β+ (rare) | 213Ra | |||||||||
| 214Ac | 89 | 125 | 214.006902(24) | 8.2(2) s | α (89%) | 210Fr | (5+)# | |||
| β+ (11%) | 214Ra | |||||||||
| 215Ac | 89 | 126 | 215.006454(23) | 0.17(1) s | α (99.91%) | 211Fr | 9/2- | |||
| β+ (.09%) | 215Ra | |||||||||
| 216Ac | 89 | 127 | 216.008720(29) | 0.440(16) ms | α | 212Fr | (1-) | |||
| β+ (7×10−5%) | 216Ra | |||||||||
| 216mAc | 44(7) keV | 443(7) µs | (9-) | |||||||
| 217Ac | 89 | 128 | 217.009347(14) | 69(4) ns | α (98%) | 213Fr | 9/2- | |||
| β+ (2%) | 217Ra | |||||||||
| 217mAc | 2012(20) keV | 740(40) ns | (29/2)+ | |||||||
| 218Ac | 89 | 129 | 218.01164(5) | 1.08(9) µs | α | 214Fr | (1-)# | |||
| 218mAc | 584(50)# keV | 103(11) ns | (11+) | |||||||
| 219Ac | 89 | 130 | 219.01242(5) | 11.8(15) µs | α | 215Fr | 9/2- | |||
| β+ (10−6%) | 219Ra | |||||||||
| 220Ac | 89 | 131 | 220.014763(16) | 26.36(19) ms | α | 216Fr | (3-) | |||
| β+ (5×10−4%) | 220Ra | |||||||||
| 221Ac | 89 | 132 | 221.01559(5) | 52(2) ms | α | 217Fr | 9/2-# | |||
| 222Ac | 89 | 133 | 222.017844(6) | 5.0(5) s | α (99%) | 218Fr | 1- | |||
| β+ (1%) | 222Ra | |||||||||
| 222mAc | 200(150)# keV | 1.05(7) min | α (88.6%) | 218Fr | high | |||||
| IT (10%) | 222Ac | |||||||||
| β+ (1.4%) | 222Ra | |||||||||
| 223Ac | 89 | 134 | 223.019137(8) | 2.10(5) min | α (99%) | 219Fr | (5/2-) | |||
| EC (1%) | 223Ra | |||||||||
| CD (3.2×10−9%) | 209Bi 14C |
|||||||||
| 224Ac | 89 | 135 | 224.021723(4) | 2.78(17) h | β+ (90.9%) | 224Ra | 0- | |||
| α (9.1%) | 220Fr | |||||||||
| β- (1.6%) | 224Th | |||||||||
| 225Ac | 89 | 136 | 225.023230(5) | 10.0(1) d | α | 221Fr | (3/2-) | |||
| CD (6×10−10%) | 211Bi 14C |
|||||||||
| 226Ac | 89 | 137 | 226.026098(4) | 29.37(12) h | β- (83%) | 226Th | (1)(-#) | |||
| EC (17%) | 226Ra | |||||||||
| α (.006%) | 222Fr | |||||||||
| 227Ac | Actinium | 89 | 138 | 227.0277521(26) | 21.772(3) a | β- (98.61%) | 227Th | 3/2- | Trace | |
| α (1.38%) | 223Fr | |||||||||
| 228Ac | Mesothorium 2 | 89 | 139 | 228.0310211(27) | 6.15(2) h | β- | 228Th | 3+ | Trace | |
| α (5.5×10−6%) | 224Fr | |||||||||
| 229Ac | 89 | 140 | 229.03302(4) | 62.7(5) min | β- | 229Th | (3/2+) | |||
| 230Ac | 89 | 141 | 230.03629(32) | 122(3) s | β- | 230Th | (1+) | |||
| 231Ac | 89 | 142 | 231.03856(11) | 7.5(1) min | β- | 231Th | (1/2+) | |||
| 232Ac | 89 | 143 | 232.04203(11) | 119(5) s | β- | 232Th | (1+) | |||
| 233Ac | 89 | 144 | 233.04455(32)# | 145(10) s | β- | 233Th | (1/2+) | |||
| 234Ac | 89 | 145 | 234.04842(43)# | 44(7) s | β- | 234Th | ||||
| 235Ac | 89 | 146 | 235.05123(38)# | 40# s | β- | 235Th | 1/2+# | |||
| 236Ac | 89 | 147 | 236.05530(54)# | 2# min | β- | 236Th | ||||
Read more about this topic: Isotopes Of Actinium
Famous quotes containing the word table:
“Remember thee?
Ay, thou poor ghost, whiles memory holds a seat
In this distracted globe. Remember thee?
Yea, from the table of my memory
I’ll wipe away all trivial fond records,
All saws of books, all forms, all pressures past
That youth and observation copied there,
And thy commandment all alone shall live
Within the book and volume of my brain,”
—William Shakespeare (1564–1616)
“... So damn your food and damn your wines,
Your twisted loaves and twisting vines,
Your table d’hôte, your à la carte,
. . . .
From now on you can keep the lot.
Take every single thing you’ve got,
Your land, your wealth, your men, your dames,
Your dream of independent power,
And dear old Konrad Adenauer,
And stick them up your Eiffel Tower.”
—Anthony Jay (b. 1930)
“For who is greater, the one who is at the table or the one who serves? Is it not the one at the table? But I am among you as one who serves.”
—Bible: New Testament, Luke 22:27.