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Periodic Table of Elements

Tb - Terbium

Terbium Menu

Nuclides / Isotopes

Nuc-
lide		Atomic
Mass		NNAbun
%		SpinHalf LifeDMDTBR
%		Decay
Energy
(MeV)
Tb139138.94874Syn      
Tb140139.94675Syn52.4sEC + PEu1390.267.300
 2.4sPGd1390.26-0.300
 2.4sECGd140 10.800
Tb141140.94176Syn5/2-3.5sECGd141 8.300
meta state 0.000MeVSyn 7.9sECGd141 8.300
Tb142141.93977Syn1+597msEC + PEu141~3.0E -76.000
 597msECGd142 10.100
meta state 0.280MeVSyn5-303msECGd142 10.380
 303msEC + PEu141 6.280
 303msIT  0.280
Tb143142.93578Syn11/2-12sECGd143 7.400
meta state 0.000MeVSyn5/2+<21sITTb143  
Tb144143.93379Syn1+~1sECGd144 8.900
meta state 0.397MeVSyn6-4.25sIT 660.397
 4.25sECGd144349.297
Tb145144.92980Syn1/2+ ECGd145 6.510
meta state 0.000MeVSyn11/2-29.5sECGd145 6.700
Tb146145.927281Syn1+8sECGd1468.080MeV 
meta state 0.000MeVSyn5-23sECGd146 8.080
meta state 0.780MeVSyn10+1.18ms    
Tb147146.92482Syn1/2+1.7hECGd147 4.609
meta state 0.050MeVSyn11/2-1.83mECGd147 4.660
Tb148147.924383Syn2-60mECGd148 5.690
meta state 0.090MeVSyn9+2.2mECGd148 5.780
Tb149148.923284Syn1/2+4.118hECGd14983.33.636
 4.118haEu14516.74.077
meta state 0.036MeVSyn11/2-4.16mECGd14999.983.672
 4.16maEu1450.024.113
Tb150149.923785Syn2-3.48haEu146<0.053.587
 3.48hECGd150 4.656
meta state 0.474MeVSyn9+5.8mECGd150~1005.130
Tb151150.923186Syn1/2+17.609haEu1470.00953.497
 17.609hECGd151 2.565
meta state 0.099MeVSyn11/2-25sIT 93.80.100
 25sECGd1516.22.664
Tb152151.924187Syn2-17.5haEu148<7.0E -73.090
 17.5hECGd152 3.990
meta state 0.501MeVSyn8+4.2mIT 78.80.502
 4.2mECGd15221.24.492
Tb153152.923488Syn5/2+2.34dECGd153 1.570
Tb154153.924789Syn021.5hb-Dy154<0.10.250
 21.5hECGd154 3.560
meta state 0.000MeVSyn7-22.7hECGd15498.23.560
 22.7hIT 1.8 
meta state 0.000MeVSyn3-9.4hECGd15478.23.560
 9.4hIT 21.8 
 9.4hb-Dy154<0.10.250
Tb155154.923590Syn3/2+5.32dECGd155 0.821
Tb156155.924791Syn3-5.35db-Dy156 0.434
 5.35dECGd156 2.444
meta state 0.050MeVSyn7-24.4hIT  0.050
meta state 0.088MeVSyn0+5.3hECGd156 2.532
 5.3hIT  0.088
Tb157156.92492Syn3/2+71yECGd157 0.060
Tb158157.925493Syn3-180yECGd15883.41.220
 180yb-Dy15816.60.937
meta state 0.110MeVSyn0-10.7sb-Dy158<0.61.047
 10.7sECGd158<0.011.330
 10.7sIT  0.110
meta state 0.388MeVSyn7-0.4msIT  0.388
Tb159158.925394100.3/2+Stable 
Tb160159.927295Syn3-72.3db-Dy160 1.835
Tb161160.927696Syn3/2+6.88db-Dy161 0.593
Tb162161.929597Syn1-7.6mb-Dy162 2.510
Tb163162.930698Syn3/2+19.5mb-Dy163 1.785
Tb164163.93399Syn5+3mb-Dy164 3.890
Tb165164.935100Syn3/2+2.11mb-Dy165 3.000
Tb166165.938101Syn      
Tb167166.94102Syn      
Tb168 103Syn      
Tb169 104Syn      
Tb170 105Syn      
Tb171 106Syn      
NuclidePotential Parent Nuclides
Tb139 None known
Tb140 None known
Tb141 Dy141 (Syn)
meta state 0.000MeV None known
Tb142 Dy142 (Syn)
meta state 0.280MeV None known
Tb143 Dy143 (Syn) Ho144 (Syn) Tb143m (Syn)
meta state 0.000MeV None known
Tb144 Dy144 (Syn)
meta state 0.397MeV None known
Tb145 Dy145 (Syn) Dy145m (Syn) Ho146 (Syn)
meta state 0.000MeV None known
Tb146 Dy146 (Syn) Ho147 (Syn)
meta state 0.000MeV None known
meta state 0.780MeV None known
Tb147 Dy147 (Syn) Dy147m (Syn) Ho148m (Syn) Ho151 (Syn) Ho151m (Syn)
meta state 0.050MeV None known
Tb148 Dy148 (Syn) Ho152 (Syn) Ho152m (Syn)
meta state 0.090MeV None known
Tb149 Dy149 (Syn) Dy149m (Syn) Ho153 (Syn) Ho153m (Syn)
meta state 0.036MeV None known
Tb150 Dy150 (Syn) Ho154 (Syn) Ho154m (Syn)
meta state 0.474MeV None known
Tb151 Dy151 (Syn)
meta state 0.099MeV None known
Tb152 Dy152 (Syn)
meta state 0.501MeV None known
Tb153 Dy153 (Syn)
Tb154 None known
meta state 0.000MeV None known
meta state 0.000MeV None known
Tb155 Dy155 (Syn)
Tb156 None known
meta state 0.050MeV None known
meta state 0.088MeV None known
Tb157 Dy157 (Syn)
Tb158 None known
meta state 0.110MeV None known
meta state 0.388MeV None known
Tb159 Dy159 (Syn) Gd159 (Syn)
Tb160 None known
Tb161 Gd161 (Syn)
Tb162 Gd162 (Syn)
Tb163 Gd163 (Syn)
Tb164 Gd164 (Syn)
Tb165 None known
Tb166 None known
Tb167 None known
Tb168 None known
Tb169 None known
Tb170 None known
Tb171 None known

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