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Erbium-162

Properties and data of the isotope 162Er.


Contents

See also: list of Erbium isotopes.

 

General data

Name of the isotope:Erbium-162; Er-162Symbol:162Er or 16268ErMass number A:162 (= number of nucleons)Atomic number Z:68 (= number of protons)Neutrons N:94Isotopic mass:161.92879(2) u (atomic weight of Erbium-162)Nuclide mass:161.8914899 u (calculated nuclear mass without electrons)Mass excess:-66.33169 MeVMass defect:1.41781428 u (per nucleus)Nuclear binding energy:1320.68549493 MeV (per nucleus)
8.1523796 MeV (average binding energy per nucleon)
Separation energy:SN = 9.204(9) MeV (first neutron)
SP = 6.4262(22) MeV (first proton)
Half-life:stableSpin and parity:
(nuclear angular momentum)
0+Charge radius:5.2246(40) femtometer fmYear of discovery:1938

 

Parent Nuclides

Direct parent isotope is: 162Tm.

 

Occurrence

Comparison of the natural Erbium isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):

 

Atomic Mass maQuantityHalf-lifeSpin
Erbium
Isotopic mixture
167.259 u100 %
Isotope 162Er161.92879(2) u0.139(5) %stable0+
Isotope 164Er163.92921(2) u1.601(3) %stable0+
Isotope 166Er165.93030(2) u33.503(36) %stable0+
Isotope 167Er166.93205(2) u22.869(9) %stable7/2+
Isotope 168Er167.93238(2) u26.978(18) %stable0+
Isotope 170Er169.93547(2) u14.910(36) %stable0+

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 94) and isobaric (same nucleon number A = 162) with Erbium-162. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

ZIsotone N = 94Isobar A = 162
54148Xe
55149Cs
56150Ba
57151La
58152Ce
59153Pr
60154Nd162Nd
61155Pm162Pm
62156Sm162Sm
63157Eu162Eu
64158Gd162Gd
65159Tb162Tb
66160Dy162Dy
67161Ho162Ho
68162Er162Er
69163Tm162Tm
70164Yb162Yb
71165Lu162Lu
72166Hf162Hf
73167Ta162Ta
74168W162W
75169Re162Re
76170Os162Os
77171Ir
78172Pt
79173Au
80174Hg

 

External data and identifiers

Adopted Levels, Gammas:NuDat 162Er

 


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Last update: 2020-10-09


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