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Ytterbium-173

Properties and data of the isotope 173Yb.

Contents
General Data
Parent Nuclides
NMR Data
Isotones und Isobares

See also: list of Ytterbium isotopes.

 

General data

Name of the isotope:Ytterbium-173; Yb-173Symbol:173Yb or 17370YbMass number A:173 (= number of nucleons)Atomic number Z:70 (= number of protons)Neutrons N:103Isotopic mass:172.93822(2) u (atomic weight of Ytterbium-173)Nuclide mass:172.8998229 u (calculated nuclear mass without electrons)Mass excess:-57.5477 MeVMass defect:1.502018588 u (per nucleus)Nuclear binding energy:1399.12130261 MeV (per nucleus)
8.08740637 MeV (average binding energy per nucleon)Separation energy:SN = 6.36710(2) MeV (first neutron)
SP = 7.466(5) MeV (first proton)Half-life:stableSpin and parity:
(nuclear angular momentum)5/2-Magnetic dipole moment:μ(μN) = - 0.67989(3)Charge radius:5.3046(59) femtometer fmYear of discovery:1934

 

Parent Nuclides

Direct parent isotopes are: 173Lu, 173Tm.

 

Occurrence

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

 

Atomic Mass maQuantityHalf-lifeSpin
Ytterbium
Isotopic mixture		173.045 u100 %
Isotope 168Yb167.93389(2) u0.126(1) %stable0+
Isotope 170Yb169.93477(2) u3.023(2) %stable0+
Isotope 171Yb170.93633(2) u14.216(7) %stable1/2-
Isotope 172Yb171.93639(2) u21.754(10) %stable0+
Isotope 173Yb172.93822(2) u16.098(9) %stable5/2-
Isotope 174Yb173.93887(2) u31.896(26) %stable0+
Isotope 176Yb175.94258(2) u12.887(30) %stable0+

 

NMR data

Nuclear magnetic properties of the NMR active Nuclide 173Yb

Isotope:173Yb-NMRQuantity:16.098(9) %Spin:5/2-Nuclearmagnetic moment
μ/μN:- 0.67989(3)Gyromagnetic ratio γ:- 1.3025 · 107 rad T-1 s-1Nuclear g-factor:gl = -0.271956Quadrupole moment Q:+ 2.80(4) barn (100 fm2)

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 103) and isobaric (same nucleon number A = 173) with Ytterbium-173. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

ZIsotone N = 103Isobar A = 173
60163Nd
62165Sm
63166Eu
64167Gd
65168Tb
66169Dy173Dy
67170Ho173Ho
68171Er173Er
69172Tm173Tm
70173Yb173Yb
71174Lu173Lu
72175Hf173Hf
73176Ta173Ta
74177W173W
75178Re173Re
76179Os173Os
77180Ir173Ir
78181Pt173Pt
79182Au173Au
80183Hg173Hg
81184Tl
82185Pb
83186Bi
84187Po

 

External data and identifiers

Adopted Levels, Gammas:NuDat 173Yb

 

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Last update: 2020-10-11

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