ไอโซโทปของแฟรนเซียม
หน้าตา
แฟรนเซียม (Fr) ไม่มีไอโซโทปที่เสถียรทำให้มวลอะตอมของแฟรนเซียมไม่มีค่าที่คงตัว ไอโซโทปของแฟรนเซียมที่เสถียรที่สุดคือ 223Fr ด้วยครึ่งชีวิต 22 นาที ซึ่งไอโซโทปนี้ได้จากการสลายตัวของ 235U ส่วนไอโซโทปธรรมชาติอื่นๆ คือ 221Fr
ตาราง
[แก้]สัญลักษณ์ นิวไคลด์ |
ชื่อ ดั้งเดิม |
Z(p) | N(n) | มวลของไอโซโทป (u) |
ครึ่งชีวิต | รูปแบบ การสลายตัว(s)[1][n 1] |
ไอโซโทป ลูกสาว(s) |
nuclear spin |
representative isotopic composition (mole fraction) |
range of natural variation (mole fraction) |
---|---|---|---|---|---|---|---|---|---|---|
พลังงานกระตุ้น | ||||||||||
199Fr | 87 | 112 | 199.00726(4) | 16(7) ms | 1/2+# | |||||
200Fr | 87 | 113 | 200.00657(8) | 24(10) ms | α | 196At | 3+# | |||
200mFr | 60(110) keV | 650(210) ms | α | 196At | 10-# | |||||
IT (rare) | 200Fr | |||||||||
201Fr | 87 | 114 | 201.00386(8) | 67(3) ms | α (99%) | 197At | (9/2-) | |||
β+ (1%) | 201Rn | |||||||||
202Fr | 87 | 115 | 202.00337(5) | 290(30) ms | α (97%) | 198At | (3+) | |||
β+ (3%) | 202Rn | |||||||||
202mFr | 330(90)# keV | 340(40) ms | α (97%) | 198At | (10-) | |||||
β+ (3%) | 202Rn | |||||||||
203Fr | 87 | 116 | 203.000925(17) | 0.55(2) s | α (95%) | 199At | (9/2-)# | |||
β+ (5%) | 203Rn | |||||||||
204Fr | 87 | 117 | 204.000653(26) | 1.7(3) s | α (96%) | 200At | (3+) | |||
β+ (4%) | 204Rn | |||||||||
204m1Fr | 50(4) keV | 2.6(3) s | α (90%) | 200At | (7+) | |||||
β+ (10%) | 204Rn | |||||||||
204m2Fr | 326(4) keV | 1.7(6) s | (10-) | |||||||
205Fr | 87 | 118 | 204.998594(8) | 3.80(3) s | α (99%) | 201At | (9/2-) | |||
β+ (1%) | 205Rn | |||||||||
206Fr | 87 | 119 | 205.99867(3) | ~16 s | β+ (58%) | 206Rn | (2+,3+) | |||
α (42%) | 202At | |||||||||
206m1Fr | 190(40) keV | 15.9(1) s | (7+) | |||||||
206m2Fr | 730(40) keV | 700(100) ms | (10-) | |||||||
207Fr | 87 | 120 | 206.99695(5) | 14.8(1) s | α (95%) | 203At | 9/2- | |||
β+ (5%) | 207Rn | |||||||||
208Fr | 87 | 121 | 207.99714(5) | 59.1(3) s | α (90%) | 204At | 7+ | |||
β+ (10%) | 208Rn | |||||||||
209Fr | 87 | 122 | 208.995954(16) | 50.0(3) s | α (89%) | 205At | 9/2- | |||
β+ (11%) | 209Rn | |||||||||
210Fr | 87 | 123 | 209.996408(24) | 3.18(6) min | α (60%) | 206At | 6+ | |||
β+ (40%) | 210Rn | |||||||||
211Fr | 87 | 124 | 210.995537(23) | 3.10(2) min | α (80%) | 207At | 9/2- | |||
β+ (20%) | 211Rn | |||||||||
212Fr | 87 | 125 | 211.996202(28) | 20.0(6) min | β+ (57%) | 212Rn | 5+ | |||
α (43%) | 208At | |||||||||
213Fr | 87 | 126 | 212.996189(8) | 34.6(3) s | α (99.45%) | 209At | 9/2- | |||
β+ (.55%) | 213Rn | |||||||||
214Fr | 87 | 127 | 213.998971(9) | 5.0(2) ms | α | 210At | (1-) | |||
214m1Fr | 123(6) keV | 3.35(5) ms | α | 210At | (8-) | |||||
214m2Fr | 638(6) keV | 103(4) ns | (11+) | |||||||
214m3Fr | 6477+Y keV | 108(7) ns | (33+) | |||||||
215Fr | 87 | 128 | 215.000341(8) | 86(5) ns | α | 211At | 9/2- | |||
216Fr | 87 | 129 | 216.003198(15) | 0.70(2) µs | α | 212At | (1-) | |||
β+ (2×10−7%) | 216Rn | |||||||||
217Fr | 87 | 130 | 217.004632(7) | 16.8(19) µs | α | 213At | 9/2- | |||
218Fr | 87 | 131 | 218.007578(5) | 1.0(6) ms | α | 214At | 1- | |||
218m1Fr | 86(4) keV | 22.0(5) ms | α | 214At | ||||||
IT (rare) | 218Fr | |||||||||
218m2Fr | 200(150)# keV | high | ||||||||
219Fr | 87 | 132 | 219.009252(8) | 20(2) ms | α | 215At | 9/2- | |||
220Fr | 87 | 133 | 220.012327(4) | 27.4(3) s | α (99.65%) | 216At | 1+ | |||
β- (.35%) | 220Ra | |||||||||
221Fr | 87 | 134 | 221.014255(5) | 4.9(2) min | α (99.9%) | 217At | 5/2- | Trace[n 2] | ||
β- (.1%) | 221Ra | |||||||||
CD (8.79×−11%) | 207Tl 14C | |||||||||
222Fr | 87 | 135 | 222.017552(23) | 14.2(3) min | β- | 222Ra | 2- | |||
223Fr | แอกทิเนียม K | 87 | 136 | 223.0197359(26) | 22.00(7) min | β- (99.99%) | 223Ra | 3/2(-) | Trace[n 3] | |
α (.006%) | 219At | |||||||||
224Fr | 87 | 137 | 224.02325(5) | 3.33(10) min | β- | 224Ra | 1- | |||
225Fr | 87 | 138 | 225.02557(3) | 4.0(2) min | β- | 225Ra | 3/2- | |||
226Fr | 87 | 139 | 226.02939(11) | 49(1) s | β- | 226Ra | 1- | |||
227Fr | 87 | 140 | 227.03184(11) | 2.47(3) min | β- | 227Ra | 1/2+ | |||
228Fr | 87 | 141 | 228.03573(22)# | 38(1) s | β- | 228Ra | 2- | |||
229Fr | 87 | 142 | 229.03845(4) | 50.2(4) s | β- | 229Ra | (1/2+)# | |||
230Fr | 87 | 143 | 230.04251(48)# | 19.1(5) s | β- | 230Ra | ||||
231Fr | 87 | 144 | 231.04544(50)# | 17.6(6) s | β- | 231Ra | (1/2+)# | |||
232Fr | 87 | 145 | 232.04977(69)# | 5(1) s | β- | 232Ra |
- ↑ Abbreviations:
CD: Cluster decay
IT: Isomeric transition - ↑ Intermediate decay product of 237Np
- ↑ Intermediate decay product of 235U
รายการอ้างอิง
[แก้]ไอโซโทปของเรดอน | ไอโซโทปของแฟรนเซียม | ไอโซโทปของเรเดียม |
ตารางไอโซโทป |
style="width:5.555em; background:#e7ff8f" | 1 H |
2 He | ||||||||||||||||
style="background:#ff9d9d" | 3 Li |
style="background:transparent" | 4 Be |
5 B |
style="background:#a1ffc3" | 6 C |
style="background:#e7ff8f" | 7 N |
style="background:#e7ff8f" | 8 O |
style="background:#e7ff8f" | 9 F |
10 Ne | ||||||||||
style="background:#ff9d9d" | 11 Na |
style="background:transparent" | 12 Mg |
style="background:#CCCCCC" | 13 Al |
14 Si |
style="background:#a1ffc3" | 15 P |
style="background:#a1ffc3" | 16 S |
style="background:#e7ff8f" | 17 Cl |
18 Ar | ||||||||||
style="background:#ff9d9d" | 19 K |
style="background:transparent" | 20 Ca |
style="background:#ffc0c0" | 21 Sc |
style="background:#ffc0c0" | 22 Ti |
style="background:#ffc0c0" | 23 V |
style="background:#ffc0c0" | 24 Cr |
style="background:#ffc0c0" | 25 Mn |
style="background:#ffc0c0" | 26 Fe |
style="background:#ffc0c0" | 27 Co |
style="background:#ffc0c0" | 28 Ni |
style="background:#ffc0c0" | 29 Cu |
style="background:#ffc0c0" | 30 Zn |
style="background:#CCCCCC" | 31 Ga |
32 Ge |
33 As |
style="background:#a1ffc3" | 34 Se |
style="background:#e7ff8f" | 35 Br |
36 Kr |
style="background:#ff9d9d" | 37 Rb |
style="background:transparent" | 38 Sr |
style="background:#ffc0c0" | 39 Y |
style="background:#ffc0c0" | 40 Zr |
style="background:#ffc0c0" | 41 Nb |
style="background:#ffc0c0" | 42 Mo |
style="background:#ffc0c0" | 43 Tc |
style="background:#ffc0c0" | 44 Ru |
style="background:#ffc0c0" | 45 Rh |
style="background:#ffc0c0" | 46 Pd |
style="background:#ffc0c0" | 47 Ag |
style="background:#ffc0c0" | 48 Cd |
style="background:#CCCCCC" | 49 In |
style="background:#CCCCCC" | 50 Sn |
51 Sb |
52 Te |
style="background:#e7ff8f" | 53 I |
54 Xe |
style="background:#ff9d9d" | 55 Cs |
style="background:transparent" | 56 Ba |
* | style="background:#ffc0c0" | 72 Hf |
style="background:#ffc0c0" | 73 Ta |
style="background:#ffc0c0" | 74 W |
style="background:#ffc0c0" | 75 Re |
style="background:#ffc0c0" | 76 Os |
style="background:#ffc0c0" | 77 Ir |
style="background:#ffc0c0" | 78 Pt |
style="background:#ffc0c0" | 79 Au |
style="background:#ffc0c0" | 80 Hg |
style="background:#CCCCCC" | 81 Tl |
style="background:#CCCCCC" | 82 Pb |
style="background:#CCCCCC" | 83 Bi |
style="background:#CCCCCC" | 84 Po |
85 At |
86 Rn |
style="background:#ff9d9d" | 87 Fr |
style="background:transparent" | 88 Ra |
** | style="background:#ffc0c0" | 104 Rf |
style="background:#ffc0c0" | 105 Db |
style="background:#ffc0c0" | 106 Sg |
style="background:#ffc0c0" | 107 Bh |
style="background:#ffc0c0" | 108 Hs |
style="background:transparent" | 109 Mt |
style="background:transparent" | 110 Ds |
style="background:transparent" | 111 Rg |
style="background:#ffc0c0" | 112 Cn |
style="background:transparent" | 113 Nh |
style="background:transparent" | 114 Fl |
style="background:transparent" | 115 Mc |
style="background:transparent" | 116 Lv |
style="background:transparent" | 117 Ts |
style="background:transparent" | 118 Og |
* | style="background:#ffbfff" | 57 La |
style="background:#ffbfff" | 58 Ce |
style="background:#ffbfff" | 59 Pr |
style="background:#ffbfff" | 60 Nd |
style="background:#ffbfff" | 61 Pm |
style="background:#ffbfff" | 62 Sm |
style="background:#ffbfff" | 63 Eu |
style="background:#ffbfff" | 64 Gd |
style="background:#ffbfff" | 65 Tb |
style="background:#ffbfff" | 66 Dy |
style="background:#ffbfff" | 67 Ho |
style="background:#ffbfff" | 68 Er |
style="background:#ffbfff" | 69 Tm |
style="background:#ffbfff" | 70 Yb |
style="background:#ffbfff" | 71 Lu | ||
** | style="background:#ff99cc" | 89 Ac |
style="background:#ff99cc" | 90 Th |
style="background:#ff99cc" | 91 Pa |
style="background:#ff99cc" | 92 U |
style="background:#ff99cc" | 93 Np |
style="background:#ff99cc" | 94 Pu |
style="background:#ff99cc" | 95 Am |
style="background:#ff99cc" | 96 Cm |
style="background:#ff99cc" | 97 Bk |
style="background:#ff99cc" | 98 Cf |
style="background:#ff99cc" | 99 Es |
style="background:#ff99cc" | 100 Fm |
style="background:#ff99cc" | 101 Md |
style="background:#ff99cc" | 102 No |
style="background:#ff99cc" | 103 Lr | ||