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Periodic Table of Elements

Gd - Gadolinium

Gadolinium Menu

Nuclides / Isotopes

Nuc-
lide		Atomic
Mass		NNAbun
%		SpinHalf LifeDMDTBR
%		Decay
Energy
(MeV)
Gd136135.94772Syn      
Gd137136.94573Syn7s ECEu137 8.800
Gd138137.9474Syn0+     
Gd139138.93875Syn 4.9sECEu139 7.700
 4.9sEC + PSm138 6.300
Gd140139.93476Syn0+15.8sECEu140 5.500
Gd141140.93277Syn1/2+14sEC + PSm1400.034.900
 14sECEu141 7.200
meta state 0.378MeVSyn11/2-24.5sECEu141897.578
 24.5sIT 110.378
Gd142141.92878Syno+70.2sECEu142 4.500
Gd143142.92779Syn1/2+39sECEu143 6.010
meta state 0.153MeVSyn11/2-112sECEu143 6.163
Gd144143.92380Syn0+4.5mECEu144 3.740
Gd145144.921781Syn1/2+23mECEu145 5.050
meta state 0.748MeVSyn11/2-85sIT 94.30.749
 85sECEu1455.75.799
Gd146145.918382Syn0+48.27dECEu146 1.030
Gd147146.919183Syn7/2-38.06hECEu147 2.187
Gd148147.918184Syn0+74.6yaSm144 3.271
Gd149148.919385Syn7/2-9.28daSm1450.000433.100
 9.28dECEu149 1.314
Gd150149.918786Syn0+1790000yaSm146 2.809
Gd151150.920387Syn7/2-124daSm147~8.0E -72.653
 124dECEu151 0.464
Gd152151.9198880.20+1.08E 14yaSm148 2.205
Gd153152.921889Syn3/2-240.4dECEu153 0.485
Gd154153.9209902.180+Stable 
Gd155154.92269114.83/2-Stable 
meta state 0.121MeVSyn11/2-31.97msIT  0.121
Gd156155.92219220.470+Stable 
Gd157156.9249315.653/2-Stable 
meta state 0.426MeVSyn11/2-18.5usIT  0.426
Gd158157.92419424.840+Stable 
Gd159158.926495Syn3/2-18.479hb-Tb159 0.971
Gd160159.92719621.860+Stable 
Gd161160.929797Syn5/2-3.66mb-Tb161 1.956
Gd162161.93198Syn0+8.4mb-Tb162 1.390
Gd163162.93499Syn5/2-68sb-Tb163 3.100
Gd164163.936100Syn0+45sb-Tb164 2.300
Gd165164.939101Syn      
Gd166165.942102Syn0+     
Gd167166.946103Syn      
Gd168167.948104Syn0+     
Gd169168.953105Syn      
NuclidePotential Parent Nuclides
Gd136 None known
Gd137 None known
Gd138 None known
Gd139 Tb140 (Syn)
Gd140 Dy141 (Syn) Tb140 (Syn)
Gd141 Dy142 (Syn) Tb141 (Syn) Tb141m (Syn)
meta state 0.378MeV None known
Gd142 Dy143 (Syn) Tb142 (Syn) Tb142m (Syn)
Gd143 Dy144 (Syn) Tb143 (Syn)
meta state 0.153MeV None known
Gd144 Tb144 (Syn) Tb144m (Syn)
Gd145 Tb145 (Syn) Tb145m (Syn)
meta state 0.748MeV None known
Gd146 Dy147 (Syn) Dy150 (Syn) Tb146 (Syn) Tb146m (Syn)
Gd147 Dy151 (Syn) Tb147 (Syn) Tb147m (Syn)
Gd148 Dy152 (Syn) Tb148 (Syn) Tb148m (Syn)
Gd149 Dy153 (Syn) Tb149 (Syn) Tb149m (Syn)
Gd150 Dy154 (Syn) Eu150m (Syn) Tb150 (Syn) Tb150m (Syn)
Gd151 Tb151 (Syn) Tb151m (Syn)
Gd152 Eu152 (Syn) Eu152m (Syn) Tb152 (Syn) Tb152m (Syn)
Gd153 Tb153 (Syn)
Gd154 Eu154 (Syn) Tb154 (Syn) Tb154m (Syn) Tb154m1 (Syn)
Gd155 Eu155 (Syn) Tb155 (Syn)
meta state 0.121MeV None known
Gd156 Eu156 (Syn) Tb156 (Syn) Tb156m1 (Syn)
Gd157 Eu157 (Syn) Tb157 (Syn)
meta state 0.426MeV None known
Gd158 Eu158 (Syn) Tb158 (Syn) Tb158m (Syn)
Gd159 Eu159 (Syn)
Gd160 Eu160 (Syn)
Gd161 Eu161 (Syn)
Gd162 Eu162 (Syn)
Gd163 None known
Gd164 None known
Gd165 None known
Gd166 None known
Gd167 None known
Gd168 None known
Gd169 None known

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