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Tungsten-182

Properties and data of the isotope 182W.


Content

See also: list of Tungsten isotopes.

 

General data

Name of the isotope:Tungsten-182; W-182Symbol:182W or 18274WMass number A:182 (= number of nucleons)Atomic number Z:74 (= number of protons)Neutrons N:108Isotopic mass:181.948204(6) u (atomic weight of Tungsten-182)Nuclide mass:181.9076131 u (calculated nuclear mass without electrons)Mass excess:-48.24766 MeVMass defect:1.566659296 u (per nucleus)Nuclear binding energy:1459.33373427 MeV (per nucleus)
8.01831722 MeV (average binding energy per nucleon)
Separation energy:SN = 8.0836(16) MeV (first neutron)
SP = 7.0967(14) MeV (first proton)
Half-life:stableSpin and parity:
(nuclear angular momentum)
0+Charge radius:5.3559(17) femtometer fmYear of discovery:1930

 

Parent Nuclides

Direct parent isotopes are: 182Re, 182Ta, 186Os.

 

Occurrence

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

 

Atomic Mass maQuantityHalf-lifeSpin
Tungsten
Isotopic mixture
183.84 u100 %
Isotope 180W179.94671(2) u0.12(1) %1.8(2) × 1018 a0+
Isotope 182W181.948204(6) u26.50(16) %stable0+
Isotope 183W182.950223(6) u14.31(4) %6.7 × 1020 a1/2-
Isotope 184W183.950931(6) u30.64(2) %stable0+
Isotope 186W185.95436(2) u28.43(19) %stable0+

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 108) and isobaric (same nucleon number A = 182) with Tungsten-182. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

OZIsotone N = 108Isobar A = 182
66174Dy
67175Ho
68176Er
69177Tm
70178Yb182Yb
71179Lu182Lu
72180Hf182Hf
73181Ta182Ta
74182W182W
75183Re182Re
76184Os182Os
77185Ir182Ir
78186Pt182Pt
79187Au182Au
80188Hg182Hg
81189Tl182Tl
82190Pb182Pb
83191Bi
84192Po
85193At
86194Rn

 

External data and identifiers

Adopted Levels, Gammas:NuDat 182W

 


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Last update: 2020-10-21


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