Isotopes Of Mercury - Wikipedia

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Appearance move to sidebar hide From Wikipedia, the free encyclopedia Isotopes of mercury (80Hg)
Main isotopes[1] Decay
Isotope abun­dance half-life (t1/2) mode pro­duct
194Hg synth 447 y ε 194Au
195Hg synth 10.7 h β+ 195Au
196Hg 0.15% stable
197Hg synth 64.14 h ε 197Au
198Hg 10.0% stable
199Hg 16.9% stable
200Hg 23.1% stable
201Hg 13.2% stable
202Hg 29.7% stable
203Hg synth 46.61 d β− 203Tl
204Hg 6.82% stable
Standard atomic weight Ar°(Hg)
  • 200.592±0.003[2]
  • 200.59±0.01 (abridged)[3]
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There are seven stable isotopes of mercury (80Hg) with 202Hg being the most abundant (29.74%). The longest-lived radioisotopes are 194Hg with a half-life of 447 years, and 203Hg with a half-life of 46.61 days. Most of the remaining 40 radioisotopes have half-lives that are less than a day. The odd natural isotopes 199Hg and 201Hg are NMR-active, having spin of 1/2 and 3/2 respectively; as NMR is best with spin 1/2, the former is normally used.[4] All isotopes of mercury are either radioactive or observationally stable, meaning that they are predicted to be radioactive but no actual decay has been observed. These isotopes are predicted to undergo either alpha decay or double beta decay.

List of isotopes

[edit]
Nuclide[n 1] Z N Isotopic mass (Da)[5][n 2][n 3] Half-life[1][n 4] Decaymode[1][n 5] Daughterisotope[n 6] Spin andparity[1][n 7][n 4] Natural abundance (mole fraction)
Excitation energy[n 4] Normal proportion[1] Range of variation
170Hg 80 90 170.00581(32)# 310(250) μs α 166Pt 0+
171Hg 80 91 171.00359(33)# 70(30) μs α 167Pt 3/2−#
172Hg 80 92 171.99886(16) 231(9) μs α 168Pt 0+
173Hg 80 93 172.99714(22)# 800(80) μs α 169Pt (7/2−)
174Hg 80 94 173.992871(21) 2.0(4) ms α 170Pt 0+
175Hg 80 95 174.99144(9) 10.2(3) ms α 171Pt (7/2−)
175mHg 494(2) keV 340(30) ns IT 175Hg (13/2+)
176Hg 80 96 175.987349(12) 20.3(14) ms α (90%) 172Pt 0+
β+ (10%) 176Au
177Hg 80 97 176.98628(9) 117(7) ms α 173Pt 7/2−
177mHg 323.2(13) keV 1.50(15) μs IT 177Hg 13/2+
178Hg 80 98 177.982485(12) 266.5(24) ms α (89%) 174Pt 0+
β+ (11%) 178Au
179Hg 80 99 178.98182(3) 1.05(3) s α (75%) 175Pt 7/2−
β+ (25%) 179Au
β+, p (0.15%) 178Pt
179mHg 171.4(4) keV 6.4(9) μs IT 179Hg 13/2+
180Hg 80 100 179.978260(14) 2.59(1) s β+ (52%) 180Au 0+
α (48%) 176Pt
181Hg 80 101 180.977819(17) 3.6(1) s β+ (73%) 181Au 1/2−
α (27%) 177Pt
β+, p (0.014%) 180Pt
β+, α (9×10−6%) 177Ir
181mHg 210(50) keV 480(20) μs IT 181Hg 13/2+
182Hg 80 102 181.974689(11) 10.83(6) s β+ (86.2%) 182Au 0+
α (13.8%) 178Pt
β+, p (<1×10−5%) 181Pt
183Hg 80 103 182.974445(8) 9.4(7) s β+ (88.3%) 183Au 1/2−
α (11.7%) 179Pt
β+, p (2.6×10−4%) 182Pt
183mHg 204(14) keV >5# μs 13/2+#
184Hg 80 104 183.971718(10) 30.87(26) s β+ (98.89%) 184Au 0+
α (1.11%) 180Pt
185Hg 80 105 184.971891(15) 49.1(10) s β+ (94%) 185Au 1/2−
α (6%) 181Pt
185mHg 103.7(4) keV 21.6(15) s IT (54%) 185Hg 13/2+
β+ (46%) 185Au
α (0.03%) 181Pt
186Hg 80 106 185.969362(13) 1.38(6) min β+ (99.98%) 186Au 0+
α (0.016%) 182Pt
186mHg 2217.3(4) keV 82(5) μs IT 186Hg (8−)
187Hg 80 107 186.969814(14) 1.9(3) min β+ 187Au 3/2−
187mHg 58(14) keV 2.4(3) min β+ 187Au 13/2+
188Hg 80 108 187.967581(7) 3.25(15) min β+ 188Au 0+
α (3.7×10−5%) 184Pt
188mHg 2724.1(4) keV 142(14) ns IT 188Hg 12+
189Hg 80 109 188.96819(3) 7.6(2) min β+ 189Au 3/2−
189mHg 80(30) keV 8.6(2) min β+ 189Au 13/2+
190Hg 80 110 189.966322(17) 20.0(5) min β+ 190Au 0+
191Hg 80 111 190.967158(24) 49(10) min β+ 191Au 3/2−
191mHg 128(22) keV 50.8(15) min β+ 191Au 13/2+
192Hg 80 112 191.965634(17) 4.85(20) h EC 192Au 0+
193Hg 80 113 192.966653(17) 3.80(15) h β+ 193Au 3/2−
193mHg 140.76(5) keV 11.8(2) h β+ (92.8%) 193Au 13/2+
IT (7.2%) 193Hg
194Hg 80 114 193.965449(3) 447(28) y EC 194Au 0+
195Hg 80 115 194.966706(25) 10.69(16) h β+ 195Au 1/2−
195mHg 176.07(4) keV 41.60(19) h IT (54.2%) 195Hg 13/2+
β+ (45.8%) 195Au
196Hg 80 116 195.965833(3) Observationally Stable[n 8] 0+ 0.0015(1)
197Hg 80 117 196.967214(3) 64.93(7) h EC 197Au 1/2−
197mHg 298.93(8) keV 23.82(4) h IT (94.68%) 197Hg 13/2+
EC (5.32%) 197Au
198Hg 80 118 197.9667692(5) Observationally Stable[n 9] 0+ 0.1004(3)
199Hg 80 119 198.9682810(6) Observationally Stable[n 10] 1/2− 0.1694(12)
199mHg 532.48(10) keV 42.67(9) min IT 199Hg 13/2+
200Hg 80 120 199.9683269(6) Observationally Stable[n 11] 0+ 0.2314(9)
201Hg 80 121 200.9703031(8) Observationally Stable[n 12] 3/2− 0.1317(9)
201mHg 766.22(15) keV 94.0(20) μs IT 201Hg 13/2+
202Hg 80 122 201.9706436(8) Observationally Stable[n 13] 0+ 0.2974(13)
203Hg 80 123 202.9728724(18) 46.610(10) d β− 203Tl 5/2−
203m1Hg 933.14(23) keV 22.1(10) μs IT 203Hg (13/2+)
203m2Hg 8281.3(5) keV 146(30) ns IT 203Hg (53/2+)
204Hg 80 124 203.9734940(5) Observationally Stable[n 14] 0+ 0.0682(4)
204mHg 7226.08(17) keV ~485 ns IT 204Hg 22+
205Hg 80 125 204.976073(4) 5.14(9) min β− 205Tl 1/2−
205m1Hg 1556.4(3) keV 1.09(4) ms IT 205Hg 13/2+
205m2Hg 3316.6(8) keV 5.89(18) μs IT 205Hg (23/2−)
206Hg 80 126 205.977514(22) 8.32(7) min β− 206Tl 0+ Trace[n 15]
206m1Hg 2102.4(3) keV 2.088(17) μs IT 206Hg 5−
206m2Hg 3722.3(10) keV 106(3) ns IT 206Hg (10+)
207Hg 80 127 206.98230(3) 2.9(2) min β− 207Tl 9/2+
208Hg 80 128 207.98576(3) 135(10) s β− 208Tl 0+
208mHg 1338(24) keV 99(14) ns IT 208Hg (8+)
209Hg 80 129 208.99076(16)# 6.3(11) s β− 209Tl 9/2+#
210Hg 80 130 209.99431(22)# 64(12) s β− (97.8%) 210Tl 0+
β−, n (2.2%) 209Tl
210m1Hg 663(2) keV 2.1(7) μs IT 210Hg (3−)
210m2Hg 1406(23) keV 2(1) μs IT 210Hg 8+#
211Hg 80 131 210.99958(22)# 26.4(81) s β− (93.7%) 211Tl 9/2+#
β−, n (6.3%) 210Tl
212Hg 80 132 212.00324(32)# 30# s[>300 ns] 0+
213Hg 80 133 213.00880(32)# 15# s[>300 ns] 9/2+#
214Hg 80 134 214.01264(43)# 8# s[>300 ns] 0+
215Hg 80 135 215.01837(43)# 600# ms[>300 ns] 9/2+#
216Hg 80 136 216.02246(43)# 2# s[>300 ns] 0+
This table header & footer:
  • view
  1. ^ mHg – Excited nuclear isomer.
  2. ^ ( ) – Uncertainty (1σ) is given in concise form in parentheses after the corresponding last digits.
  3. ^ # – Atomic mass marked #: value and uncertainty derived not from purely experimental data, but at least partly from trends from the Mass Surface (TMS).
  4. ^ a b c # – Values marked # are not purely derived from experimental data, but at least partly from trends of neighboring nuclides (TNN).
  5. ^ Modes of decay:
    EC: Electron capture
    IT: Isomeric transition
  6. ^ Bold symbol as daughter – Daughter product is stable.
  7. ^ ( ) spin value – Indicates spin with weak assignment arguments.
  8. ^ Believed to undergo β+β+ decay to 196Pt with a half-life over 2.5×1018 years; also theorized to undergo α decay to 192Pt
  9. ^ Believed to undergo α decay to 194Pt
  10. ^ Believed to undergo α decay to 195Pt
  11. ^ Believed to undergo α decay to 196Pt
  12. ^ Believed to undergo α decay to 197Pt
  13. ^ Believed to undergo α decay to 198Pt
  14. ^ Believed to undergo β−β− decay to 204Pb
  15. ^ Intermediate decay product of 238U

See also

[edit]

Daughter products other than mercury

  • Isotopes of thallium
  • Isotopes of gold
  • Isotopes of platinum
  • Isotopes of iridium

References

[edit]
  1. ^ a b c d e Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3) 030001. doi:10.1088/1674-1137/abddae.
  2. ^ "Standard Atomic Weights: Mercury". CIAAW. 2011.
  3. ^ Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry. doi:10.1515/pac-2019-0603. ISSN 1365-3075.
  4. ^ "Mercury NMR".
  5. ^ Wang, Meng; Huang, W.J.; Kondev, F.G.; Audi, G.; Naimi, S. (2021). "The AME 2020 atomic mass evaluation (II). Tables, graphs and references*". Chinese Physics C. 45 (3) 030003. doi:10.1088/1674-1137/abddaf.
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Isotopes of the chemical elements
Group 1 2   3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Period Hydrogen andalkali metals Alkalineearth metals Pnicto­gens Chal­co­gens Halo­gens Noble gases
① Isotopes § ListH1 Isotopes § ListHe2
② Isotopes § ListLi3 Isotopes § ListBe4 Isotopes § ListB5 Isotopes § ListC6 Isotopes § ListN7 Isotopes § ListO8 Isotopes § ListF9 Isotopes § ListNe10
③ Isotopes § ListNa11 Isotopes § ListMg12 Isotopes § ListAl13 Isotopes § ListSi14 Isotopes § ListP15 Isotopes § ListS16 Isotopes § ListCl17 Isotopes § ListAr18
④ Isotopes § ListK19 Isotopes § ListCa20 Isotopes § ListSc21 Isotopes § ListTi22 Isotopes § ListV23 Isotopes § ListCr24 Isotopes § ListMn25 Isotopes § ListFe26 Isotopes § ListCo27 Isotopes § ListNi28 Isotopes § ListCu29 Isotopes § ListZn30 Isotopes § ListGa31 Isotopes § ListGe32 Isotopes § ListAs33 Isotopes § ListSe34 Isotopes § ListBr35 Isotopes § ListKr36
⑤ Isotopes § ListRb37 Isotopes § ListSr38 Isotopes § ListY39 Isotopes § ListZr40 Isotopes § ListNb41 Isotopes § ListMo42 Isotopes § ListTc43 Isotopes § ListRu44 Isotopes § ListRh45 Isotopes § ListPd46 Isotopes § ListAg47 Isotopes § ListCd48 Isotopes § ListIn49 Isotopes § ListSn50 Isotopes § ListSb51 Isotopes § ListTe52 Isotopes § ListI53 Isotopes § ListXe54
⑥ Isotopes § ListCs55 Isotopes § ListBa56 1 asterisk Isotopes § ListLu71 Isotopes § ListHf72 Isotopes § ListTa73 Isotopes § ListW74 Isotopes § ListRe75 Isotopes § ListOs76 Isotopes § ListIr77 Isotopes § ListPt78 Isotopes § ListAu79 Isotopes § ListHg80 Isotopes § ListTl81 Isotopes § ListPb82 Isotopes § ListBi83 Isotopes § ListPo84 Isotopes § ListAt85 Isotopes § ListRn86
⑦ Isotopes § ListFr87 Isotopes § ListRa88 1 asterisk Isotopes § ListLr103 Isotopes § ListRf104 Isotopes § ListDb105 Isotopes § ListSg106 Isotopes § ListBh107 Isotopes § ListHs108 Isotopes § ListMt109 Isotopes § ListDs110 Isotopes § ListRg111 Isotopes § ListCn112 Isotopes § ListNh113 Isotopes § ListFl114 Isotopes § ListMc115 Isotopes § ListLv116 Isotopes § ListTs117 Isotopes § ListOg118
⑧ Isotopes § ListUue119 Isotopes § ListUbn120
1 asterisk Isotopes § ListLa57 Isotopes § ListCe58 Isotopes § ListPr59 Isotopes § ListNd60 Isotopes § ListPm61 Isotopes § ListSm62 Isotopes § ListEu63 Isotopes § ListGd64 Isotopes § ListTb65 Isotopes § ListDy66 Isotopes § ListHo67 Isotopes § ListEr68 Isotopes § ListTm69 Isotopes § ListYb70  
1 asterisk Isotopes § ListAc89 Isotopes § ListTh90 Isotopes § ListPa91 Isotopes § ListU92 Isotopes § ListNp93 Isotopes § ListPu94 Isotopes § ListAm95 Isotopes § ListCm96 Isotopes § ListBk97 Isotopes § ListCf98 Isotopes § ListEs99 Isotopes § ListFm100 Isotopes § ListMd101 Isotopes § ListNo102
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