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Isotopes of Erbium (click to see decay chain):
143Er  144Er  145Er  146Er  147Er  148Er  149Er  150Er  151Er  152Er  153Er  154Er  155Er  156Er  157Er  158Er  159Er  160Er  161Er  162Er  163Er  164Er  165Er  166Er  167Er  168Er  169Er  170Er  171Er  172Er  173Er  174Er  175Er  176Er  177Er 

167Er    Half-lifeFermion, 68p 99ntitle icon
StableSpin 7/2 Parity 1

This isotope is stable and thus has no decay products, so instead we show decay chains that lead down to it.
Atomic Weight166.932048159
Mass Excess-63.296733MeV
Binding Energy8.131779MeV
Magnetic Moment-0.56385μ
Quadrupole Moment3.565
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Show Decay Image Full Size.

Decay chain image generated by Mathematica's GraphPlot and IsotopeData functions from Wolfram Research, Inc..