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 | ||||||||||
| 212Pa | 91 | 121 | 212.02320(8) | 8(5) ms |
7+# | |||||
| 213Pa | 91 | 122 | 213.02111(8) | 7(3) ms |
α | 209Ac | 9/2-# | |||
| 214Pa | 91 | 123 | 214.02092(8) | 17(3) ms | α | 210Ac | ||||
| 215Pa | 91 | 124 | 215.01919(9) | 14(2) ms | α | 211Ac | 9/2-# | |||
| 216Pa | 91 | 125 | 216.01911(8) | 105(12) ms | α (80%) | 212Ac | ||||
| β+ (20%) | 216Th | |||||||||
| 217Pa | 91 | 126 | 217.01832(6) | 3.48(9) ms | α | 213Ac | 9/2-# | |||
| 217mPa | 1860(7) keV | 1.08(3) ms | α | 213Ac | 29/2+# | |||||
| IT (rare) | 217Pa | |||||||||
| 218Pa | 91 | 127 | 218.020042(26) | 0.113(1) ms | α | 214Ac | ||||
| 219Pa | 91 | 128 | 219.01988(6) | 53(10) ns | α | 215Ac | 9/2- | |||
| β+ (5×10−9%) | 219Th | |||||||||
| 220Pa | 91 | 129 | 220.02188(6) | 780(160) ns | α | 216Ac | 1-# | |||
| 221Pa | 91 | 130 | 221.02188(6) | 4.9(8) µs | α | 217Ac | 9/2- | |||
| 222Pa | 91 | 131 | 222.02374(8)# | 3.2(3) ms | α | 218Ac | ||||
| 223Pa | 91 | 132 | 223.02396(8) | 5.1(6) ms | α | 219Ac | ||||
| β+ (.001%) | 223Th | |||||||||
| 224Pa | 91 | 133 | 224.025626(17) | 844(19) ms | α (99.9%) | 220Ac | 5-# | |||
| β+ (.1%) | 224Th | |||||||||
| 225Pa | 91 | 134 | 225.02613(8) | 1.7(2) s | α | 221Ac | 5/2-# | |||
| 226Pa | 91 | 135 | 226.027948(12) | 1.8(2) min | α (74%) | 222Ac | ||||
| β+ (26%) | 226Th | |||||||||
| 227Pa | 91 | 136 | 227.028805(8) | 38.3(3) min | α (85%) | 223Ac | (5/2-) | |||
| EC (15%) | 227Th | |||||||||
| 228Pa | 91 | 137 | 228.031051(5) | 22(1) h | β+ (98.15%) | 228Th | 3+ | |||
| α (1.85%) | 224Ac | |||||||||
| 229Pa | 91 | 138 | 229.0320968(30) | 1.50(5) d | EC (99.52%) | 229Th | (5/2+) | |||
| α (.48%) | 225Ac | |||||||||
| 229mPa | 11.6(3) keV | 420(30) ns | 3/2- | |||||||
| 230Pa | 91 | 139 | 230.034541(4) | 17.4(5) d | β+ (91.6%) | 230Th | (2-) | |||
| β- (8.4%) | 230U | |||||||||
| α (.00319%) | 226Ac | |||||||||
| 231Pa | Protoactinium | 91 | 140 | 231.0358840(24) | 3.276(11)×104 a | α | 227Ac | 3/2- | 1.0000 | |
| CD (1.34×10−9%) | 207Tl 24Ne |
|||||||||
| SF (3×10−10%) | (various) | |||||||||
| CD (10−12%) | 208Pb 23F |
|||||||||
| 232Pa | 91 | 141 | 232.038592(8) | 1.31(2) d | β- | 232U | (2-) | |||
| EC (.003%) | 232Th | |||||||||
| 233Pa | 91 | 142 | 233.0402473(23) | 26.975(13) d | β- | 233U | 3/2- | |||
| 234Pa | Uranium Z | 91 | 143 | 234.043308(5) | 6.70(5) h | β- | 234U | 4+ | Trace | |
| SF (3×10−10%) | (various) | |||||||||
| 234mPa | Uranium X2 Brevium |
78(3) keV | 1.17(3) min | β- (99.83%) | 234U | (0-) | Trace | |||
| IT (.16%) | 234Pa | |||||||||
| SF (10−10%) | (various) | |||||||||
| 235Pa | 91 | 144 | 235.04544(5) | 24.44(11) min | β- | 235U | (3/2-) | |||
| 236Pa | 91 | 145 | 236.04868(21) | 9.1(1) min | β- | 236U | 1(-) | |||
| β-, SF (6×10−8%) | (various) | |||||||||
| 237Pa | 91 | 146 | 237.05115(11) | 8.7(2) min | β- | 237U | (1/2+) | |||
| 238Pa | 91 | 147 | 238.05450(6) | 2.27(9) min | β- | 238U | (3-)# | |||
| β-, SF (2.6×10−6%) | (various) | |||||||||
| 239Pa | 91 | 148 | 239.05726(21)# | 1.8(5) h | β- | 239U | (3/2)(-#) | |||
| 240Pa | 91 | 149 | 240.06098(32)# | 2# min | β- | 240U | ||||
Read more about this topic: Isotopes Of Protactinium
Famous quotes containing the word table:
““A sigh for every so many breath,
And for every so many sigh a death.
That’s what I always tell my wife
Is the multiplication table of life.””
—Robert Frost (1874–1963)
“In this sad state, God Tender Bowells run
Out streams of Grace: And he to end all strife
The Purest Wheate in Heaven, his deare-dear Son
Grinds, and kneads up into this Bread of Life.
Which Bread of Life from Heaven down came and stands
Disht on thy Table up by Angells Hands.”
—Edward Taylor (1645–1729)
“The one happiness is to shut one’s door upon a little room, with a table before one, and to create; to create life in that isolation from life.”
—Eleonora Duse (1859–1924)
Related Phrases
Related Words