Cúrio: Propriedades


Isótopos

  Abund.
Nat. (%)
Massa
Atómica
Meia-
vida
Modo de Dec.
/Energia (/MeV)
En. da Part.
/Intensidade
(MeV/%)
Seccão Ef.
Neut. Term.
(b)
Spin
(h/2 pi)
Mom. Dip.
Magnético
(nm)
Mom. Quad.
Eléctrico
(b)
En. dos Gamas
/Intensidade
(MeV/%)
236Cm   236.05139               
237Cm   237.05276               
238Cm   238.05302 2.4h C.E./ 0.96
alpha/ 6.632
6.52  0+      
239Cm   239.05484 3h C.E./ 1.7          0.0407
0.1466
0.1874
240Cm   240.055503 27d alpha/ 6.397 5.989/ 0.014
6.147/ 0.05
6.2478/ 28.8
6.2906/ 70.6
 0+      
241Cm   241.057645 4 alpha/ 6.184
5.8842/ 0.12
5.9291/ 0.18
5.9389/ 0.69
 1/2+     Am k x rays
0.13241
0.16505
0.18028
0.43063
0.47181
242Cm   242.05883 162.8d alpha/ 6.216 5.9694/ 0.035
6.069/ 25
6.1129/ 74
20 b0+     Pu L x rays
0.04408
0.10189
0.04 - 1.2
243Cm   243.061381 28.5a alpha/ 6.167 5.6856/ 1.6
5.742/ 10.6
5.7859/ 73.3
5.9922/ 6.5
6.0589/ 5
130 b5/2+ 0.41 nm   Pu L x rays
Pu k x rays
0.10612
0.20975
0.22819
0.2776
0.28546
0.33431
0.04 - 0.7
244Cm   244.062747 18.11a alpha/ 5.902 5.6656/ 0.02
5.7528/ 24
5.805/ 76
15 b0+     Pu L x rays
0.04282
0.09885
0.15262
245Cm   245.065483 8500a alpha/ 5.623 5.235/ 0.3
5.3038/ 5
5.362/ 93
5.4927/ 0.8
5.5331/ 0.6
350 b7/2+ 0.5 nm   Pu L x rays
Pu k x rays
0.04195
0.13299
0.13606
0.17494
246Cm   246.067218 4780a alpha/ 5.476 5.343/ 21
5.386/ 79
1.2 b0+     Pu L x rays
0.04453
247Cm   247.070347 1.56x107a alpha/ 5.352 4.818/ 4.7
4.869/ 71
4.982/ 2
5.2104/ 5.7
5.2659/ 13.8
60 b9/2- 0.37 nm   Pu k x rays
0.2792
0.2886
0.3471
0.4035
248Cm   248.072343 3.4x105a alpha/ 5.162
F.E.
4.931/ 0.07
5.0349/ 16.5
5.0784/ 1
2.6 b0+      
249Cm   249.075948 64.15m ß-/ 0.902 0.9 1.6 b1/2+     Bk k x rays
0.56039
0.63431
250Cm   250.078352 9700a F.E.,alpha/ 5.27   80 b0+      
251Cm   251.08229 16.8m ß-/ 1.42 0.9/ 16  1/2+     0.3896
0.5299
0.5425