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Mercury-200

Properties and data of the isotope 200Hg.


Content

See also: list of Mercury isotopes.

 

General data

Name of the isotope:Mercury-200; Hg-200Symbol:200Hg or 20080HgMass number A:200 (= number of nucleons)Atomic number Z:80 (= number of protons)Neutrons N:120Isotopic mass:199.968327(3) u (atomic weight of Mercury-200)Nuclide mass:199.9244454 u (calculated nuclear mass without electrons)Mass excess:-29.50321 MeVMass defect:1.69746548 u (per nucleus)Nuclear binding energy:1581.17890983 MeV (per nucleus)
7.90589455 MeV (average binding energy per nucleon)
Separation energy:SN = 8.02852(11) MeV (first neutron)
SP = 7.6985(6) MeV (first proton)
Half-life:stableSpin and parity:
(nuclear angular momentum)
0+Charge radius:5.4551(31) femtometer fmYear of discovery:1925

 

Parent Nuclides

Direct parent isotopes are: 200Tl, 200Au.

 

Occurrence

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

 

Atomic Mass maQuantityHalf-lifeSpin
Mercury
Isotopic mixture
200.592 u100 %
Isotope 196Hg195.96583(2) u0.15(1) %stable0+
Isotope 198Hg197.966769(3) u10.04(3) %stable0+
Isotope 199Hg198.968281(3) u16.94(12) %stable1/2-
Isotope 200Hg199.968327(3) u23.14(9) %stable0+
Isotope 201Hg200.970303(5) u13.17(9) %stable3/2-
Isotope 202Hg201.970643(5) u29.74(13) %stable0+
Isotope 204Hg203.973494(3) u6.82(4) %stable0+

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 120) and isobaric (same nucleon number A = 200) with Mercury-200. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

OZIsotone N = 120Isobar A = 200
73193Ta
74194W
75195Re
76196Os200Os
77197Ir200Ir
78198Pt200Pt
79199Au200Au
80200Hg200Hg
81201Tl200Tl
82202Pb200Pb
83203Bi200Bi
84204Po200Po
85205At200At
86206Rn200Rn
87207Fr200Fr
88208Ra
89209Ac
90210Th

 

External data and identifiers

Adopted Levels, Gammas:NuDat 200Hg

 


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Last update: 2020-10-22


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