FrÔncio: Propriedades


Isˇtopos

  Abund.
Nat. (%)
Massa
Atˇmica
Meia-
vida
Modo de Dec.
/Energia (/MeV)
En. da Part.
/Intensidade
(MeV/%)
SeccŃo Ef.
Neut. Term.
(b)
Spin
(h/2 pi)
Mom. Dip.
MagnÚtico
(nm)
Mom. Quad.
ElÚctrico
(b)
En. dos Gamas
/Intensidade
(MeV/%)
201Fr   201.00411 0.05s alpha/ 7.54 7.388  9/2-      
202Fr   202.0033 0.34s alpha/ 7.59 7.25         
203Fr   203.001 0.55s alpha/ 7.28 7.132  9/2-      
204Fr   204.00067 2.1s alpha/ 7.17 6.967/ 30
7.027/ 70
        
205Fr   204.99861 3.9s alpha/ 7.05 6.914  9/2-      
206mFr     0.7s alpha 6.93        0.531
206Fr   205.99846 16s alpha/ 7.416 6.789         
207Fr   206.9968 14.8s alpha/ 6.9 6.766  9/2- 3.9 nm -0.16 b  
208Fr   207.99708 59.1s alpha/ 6.77
C.E./ 7
6.636  7+ -4.8 nm 0.004 b  
209Fr   208.995878 50s alpha/ 5.1
C.E./ 6.778
6.646  9/2- 3.9 nm -0.24 b  
210Fr   209.99634 3.2m alpha/ 6.67
C.E./ 6.2
6.543  6+ 4.4 nm 0.19 b 0.203
0.6438
0.8175
0.9008
211Fr   210.99549 3.1m alpha/ 6.66
C.E./ 4.58
6.534  9/2- 4 nm -0.19 b 0.22
0.2799
0.5389
0.9169
212Fr   211.99613 20m C.E./ 5.08
alpha/ 6.529
6.261/ 16
6.335/ 4
6.383/ 10
6.406/ 9.5
6.08 - 6.18
6.08 - 6.185+ 4.6 nm -0.1 b Rn k x rays
0.08107
0.08378
0.2277
1.1856
1.2748
0.014 - 1.178
213Fr   212.996165 34.6s alpha/ 6.905 8.476/ 51  9/2- 4 nm -0.14 b  
214mFr     3.4ms alpha 8.547/ 46
6.775 - 8.046
 9-      
214Fr   213.998948 5.1ms alpha/ 8.587 7.409/ 0.3
7.605/ 1
7.94/ 1
8.355/ 4.7
8.427/ 93
8.427/ 931-      
215Fr   215.000312 0.12Ás alpha/ 9.537 9.36  9/2-      
216Fr   216.003178 0.7Ás alpha/ 9.175 9.005         
217Fr   217.004609 0.016ms alpha/ 8.471 8.315  9/2-      
218mFr     22ms alpha           
218Fr   218.007553 1ms alpha/ 8.014 7.384/ 0.5
7.542/ 1
7.572/ 5
7.732/ 0.5
7.867/ 93
7.867/ 931-      
219Fr   219.009242 21ms alpha/ 8.132 6.802/ 0.25
6.967/ 0.6
7.146/ 0.25
7.313/ 99
 9/2-      
220Fr   220.012293 27.4s alpha/ 6.8 6.582/ 10
6.63/ 6
6.641/ 12
6.686/ 61
6.39 - 6.58
6.39 - 6.581+ -0.67 nm 0.47 b 0.045
0.061
0.106
0.1539
0.1617
221Fr   221.01423 4.8m alpha/ 6.457 5.9393/ 0.17
5.9797/ 0.49
6.0751/ 0.15
6.2433/ 1.3
6.341/ 83.4
6.341/ 83.45/2- 1.58 nm -1 b At k x rays
0.0995
0.21798
0.4091
222Fr     14.3m -/ 2.08
alpha/ 5.85
1.78  2- 0.63 nm 0.51 b  
223Fr   223.019733 21.8m -/ 1.149 1.17/ 65  3/2+ 1.17 nm 1.17 b 0.05014
0.07972
0.13 - 0.9
224Fr   224.02322 3m -/ 2.82    1- 0.4 nm 0.517 b 0.1315
0.21575
0.8367
0.1 - 2.21
225Fr   225.02559 3.9m -/ 1.85    3/2+ 1.07 nm 1.3 b  
226Fr   226.0292 49s -/ 3.5    1+ 0.071 nm -1.35 b 0.18606
0.25373
227Fr   227.03177 2.48m -/ 2.4    1/2+ 1.5 nm    
228Fr   228.03557 39s -/ 4.2    2- -0.76 nm 2.4 b  
229Fr     50s -           
230Fr     19s -    3+      
231Fr     17s -