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Periodic Table of Elements

Eu - Europium

Europium Menu

Nuclides / Isotopes

Nuc-
lide		Atomic
Mass		NNAbun
%		SpinHalf LifeDMDTBR
%		Decay
Energy
(MeV)
Eu131 68Syn3/2+, 5/2+26msP   
Eu132131.95469Syn      
Eu133132.94970Syn      
Eu134133.94671Syn 0.5sEC + PPm133>0 
 0.5sECSm134  
Eu135134.94272Syn 1.5sECSm135 8.700
 1.5sEC + PPm134 5.00
Eu136135.9473Syn7+3.3sEC + PPm1350.096.500
 3.3sECSm136 10.400
meta state 0.000MeVSyn3+3.7sEC + PPm1350.096.500
 3.7sECSm136 10.400
Eu137136.93574Syn11/2-11sECSm137 7.500
Eu138137.93375Syn6-12.1sECSm138 9.200
Eu139138.9376Syn11/2-17.9sECSm139 6.700
Eu140139.928177Syn1+1.51sECSm140 8.400
meta state 0.185MeVSyn5-125msECSm140<18.585
 125msIT  0.185
Eu141140.924978Syn5/2+40.7sECSm141 5.550
meta state 0.096MeVSyn11/2-2.7sIT 870.096
 2.7sECSm141135.646
Eu142141.923479Syn1+2.34sECSm142 7.640
meta state 0.000MeVSyn8-1.22mECSm142 7.640
Eu143142.920380Syn5/2+2.63mECSm143 5.275
Eu144143.918881Syn1+10.2sECSm144 6.315
Eu145144.916382Syn5/2+5.93dECSm145 2.660
Eu146145.917283Syn4-4.61dECSm146 3.878
Eu147146.916784Syn5/2+24.1daPm1430.00222.990
 24.1dECSm147 1.722
Eu148147.918285Syn5-54.5daPm1449.4E -72.761
 54.5dECSm148 3.107
Eu149148.917986Syn5/2+93.1dECSm149 0.692
Eu150149.919787Syn5-36.9yECSm150 2.261
meta state 0.042MeVSyn0-12.8hb-Gd150891.013
 12.8hECSm150112.303
 12.8hITEu150 0.042
Eu151150.91998847.85/2+Stable 
Eu152151.921789Syn3-13.537yECSm15272.11.874
 13.537yb-Gd15227.91.819
meta state 0.045MeVSyn0-9.3116hb-Gd152721.865
 9.3116hECSm152281.920
meta state 0.147MeVSyn8-96mIT  0.148
Eu153152.92129052.25/2+Stable 
Eu154153.92391Syn3-8.593yb-Gd15499.981.969
 8.593yECSm1540.020.717
meta state 0.145MeVSyn8-46.3mIT  0.145
Eu155154.922992Syn5/2+4.7611yb-Gd155 0.252
Eu156155.924893Syn0+15.19db-Gd156 2.451
Eu157156.925494Syn5/2+15.18hb-Gd157 1.363
Eu158157.927895Syn1-45.9mb-Gd158 3.490
Eu159158.929196Syn5/2+18.1mb-Gd159 2.514
Eu160159.93297Syn1-38sb-Gd160 4.580
Eu161160.93498Syn 26sb-Gd161 3.700
Eu162161.93799Syn 10.6sb-Gd162 5.600
Eu163162.939100Syn      
Eu164163.943101Syn      
Eu165164.946102Syn      
Eu166165.95103Syn      
Eu167166.953104Syn      
NuclidePotential Parent Nuclides
Eu131 None known
Eu132 None known
Eu133 None known
Eu134 None known
Eu135 None known
Eu136 None known
meta state 0.000MeV None known
Eu137 Gd137 (Syn)
Eu138 None known
Eu139 Gd139 (Syn) Tb140 (Syn)
Eu140 Gd140 (Syn)
meta state 0.185MeV None known
Eu141 Gd141 (Syn) Gd141m (Syn) Tb142 (Syn) Tb142m (Syn)
meta state 0.096MeV None known
Eu142 Gd142 (Syn)
meta state 0.000MeV None known
Eu143 Gd143 (Syn) Gd143m (Syn)
Eu144 Gd144 (Syn)
Eu145 Gd145 (Syn) Gd145m (Syn) Tb149 (Syn) Tb149m (Syn)
Eu146 Gd146 (Syn) Tb150 (Syn)
Eu147 Gd147 (Syn) Tb151 (Syn)
Eu148 Tb152 (Syn)
Eu149 Gd149 (Syn)
Eu150 Eu150m (Syn)
meta state 0.042MeV None known
Eu151 Gd151 (Syn) Sm151 (Syn)
Eu152 None known
meta state 0.045MeV None known
meta state 0.147MeV None known
Eu153 Gd153 (Syn) Sm153 (Syn)
Eu154 None known
meta state 0.145MeV None known
Eu155 Sm155 (Syn)
Eu156 Sm156 (Syn)
Eu157 Sm157 (Syn)
Eu158 Sm158 (Syn)
Eu159 Sm159 (Syn)
Eu160 Sm160 (Syn)
Eu161 None known
Eu162 None known
Eu163 None known
Eu164 None known
Eu165 None known
Eu166 None known
Eu167 None known

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