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Ytterbium-165

Properties and data of the isotope 165Yb.


Contents

See also: list of Ytterbium isotopes.

 

General data

Name of the isotope:Ytterbium-165; Yb-165Symbol:165Yb or 16570YbMass number A:165 (= number of nucleons)Atomic number Z:70 (= number of protons)Neutrons N:95Isotopic mass:164.935270(28) u (atomic weight of Ytterbium-165)Nuclide mass:164.8968729 u (calculated nuclear mass without electrons)Mass excess:-60.29561 MeVMass defect:1.43564926 u (per nucleus)Nuclear binding energy:1337.29867179 MeV (per nucleus)
8.10484044 MeV (average binding energy per nucleon)
Separation energy:SN = 7.35(3) MeV (first neutron)
SP = 5.68(4) MeV (first proton)
Half-life:9.9(3) minDecay constant λ:0.0011669144453871 s-1Specific activity α:4.284953147326 × 10+18 Bq g-1
115809544.52235 Ci g-1
Spin and parity:
(nuclear angular momentum)
5/2-Magnetic dipole moment:μ(μN) = + 0.478(8)Quadrupole moment Q:+ 2.48(4) barn (100 fm2)Nuclear g-factor:gl = 0.1912Charge radius:5.2399(57) femtometer fmYear of discovery:1964

 

Radioactive Decay

Half-life T½ = 9.9(3) min (minutes) respectively 5.94 × 102 seconds s.

Decay
mode
DaughterProbabilityDecay energyγ energy
(intensity)
EC/β+165Tm100 %2.634(27) MeV

 

Parent Nuclides

Direct parent isotope is: 165Lu.

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 95) and isobaric (same nucleon number A = 165) with Ytterbium-165. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

ZIsotone N = 95Isobar A = 165
55150Cs
56151Ba
57152La
58153Ce
59154Pr
60155Nd
61156Pm
62157Sm165Sm
63158Eu165Eu
64159Gd165Gd
65160Tb165Tb
66161Dy165Dy
67162Ho165Ho
68163Er165Er
69164Tm165Tm
70165Yb165Yb
71166Lu165Lu
72167Hf165Hf
73168Ta165Ta
74169W165W
75170Re165Re
76171Os165Os
77172Ir165Ir
78173Pt
79174Au
80175Hg
81176Tl

 

External data and identifiers

Adopted Levels, Gammas:NuDat 165Yb

 


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Last update: 2020-10-11


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