Mercury-200
Properties and data of the isotope 200Hg.
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 ma | Quantity | Half-life | Spin |
---|
Mercury Isotopic mixture | 200.592 u | 100 % | | |
Isotope 196Hg | 195.96583(2) u | 0.15(1) % | stable | 0+ |
Isotope 198Hg | 197.966769(3) u | 10.04(3) % | stable | 0+ |
Isotope 199Hg | 198.968281(3) u | 16.94(12) % | stable | 1/2- |
Isotope 200Hg | 199.968327(3) u | 23.14(9) % | stable | 0+ |
Isotope 201Hg | 200.970303(5) u | 13.17(9) % | stable | 3/2- |
Isotope 202Hg | 201.970643(5) u | 29.74(13) % | stable | 0+ |
Isotope 204Hg | 203.973494(3) u | 6.82(4) % | stable | 0+ |
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.
Z | Isotone N = 120 | Isobar A = 200 |
73 | 193Ta | |
74 | 194W | |
75 | 195Re | |
76 | 196Os | 200Os |
77 | 197Ir | 200Ir |
78 | 198Pt | 200Pt |
79 | 199Au | 200Au |
80 | 200Hg | 200Hg |
81 | 201Tl | 200Tl |
82 | 202Pb | 200Pb |
83 | 203Bi | 200Bi |
84 | 204Po | 200Po |
85 | 205At | 200At |
86 | 206Rn | 200Rn |
87 | 207Fr | 200Fr |
88 | 208Ra | |
89 | 209Ac | |
90 | 210Th | |
External data and identifiers
Last update: 2020-10-22
Perma link: https://www.chemlin.org/isotope/mercury-200
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