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Ytterbium-176

Properties and data of the isotope 176Yb.


Content

See also: list of Ytterbium isotopes.

 

General data

Name of the isotope:Ytterbium-176; Yb-176Symbol:176Yb or 17670YbMass number A:176 (= number of nucleons)Atomic number Z:70 (= number of protons)Neutrons N:106Isotopic mass:175.94258(2) u (atomic weight of Ytterbium-176)Nuclide mass:175.9041829 u (calculated nuclear mass without electrons)Mass excess:-53.48639 MeVMass defect:1.523653336 u (per nucleus)Nuclear binding energy:1419.27394056 MeV (per nucleus)
8.06405648 MeV (average binding energy per nucleon)
Separation energy:SN = 6.86708(7) MeV (first neutron)
SP = 8.47(5) MeV (first proton)
Half-life:stableSpin and parity:
(nuclear angular momentum)
0+Charge radius:5.3215(62) femtometer fmYear of discovery:1934

 

Parent Nuclides

Direct parent isotopes are: 176Lu, 176Tm.

 

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+

 

Nuclear Isomers

Nuclear isomers or excited states with the activation energy in keV related to the ground state.

Nuclear IsomerExcitation EnergyHalf-lifeSpin
176mYb1049.8(6) keV11.4(3) s8-

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 106) and isobaric (same nucleon number A = 176) with Ytterbium-176. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

OZIsotone N = 106Isobar A = 176
64170Gd
65171Tb
66172Dy
67173Ho
68174Er176Er
69175Tm176Tm
70176Yb176Yb
71177Lu176Lu
72178Hf176Hf
73179Ta176Ta
74180W176W
75181Re176Re
76182Os176Os
77183Ir176Ir
78184Pt176Pt
79185Au176Au
80186Hg176Hg
81187Tl176Tl
82188Pb
83189Bi
84190Po
85191At

 

External data and identifiers

Adopted Levels, Gammas:NuDat 176Yb

 


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Last update: 2023-06-08


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