User:Femto/elements e9

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• Obsolete, merged into articles
• page E1 — H He Li Be B C N O F Ne
• page E2 — Na Mg Al Si P S Cl Ar
• page E3 — K Ca Ga Ge As Se Br Kr
• page E4 — Sc Ti V Cr Mn Fe Co Ni Cu Zn
• page E5 — Rb Sr In Sn Sb Te I Xe
• page E6 — Y Zr Nb Mo Tc Ru Rh Pd Ag Cd
• page E7 — Cs Ba Tl Pb Bi Po At Rn
• page E8 — La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb
• page E9 — Lu Hf Ta W Re Os Ir Pt Au Hg
• page E10 — Fr Ra Lr Rf Db Sg Bh Hs Mt Ds Rg Uub Uut Uuq Uup Uuh
• page E11 — Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No

Contents 1 lutetium 2 hafnium 3 tantalum 4 tungsten 5 rhenium 6 osmium 7 iridium 8 platinum 9 gold 10 mercury

[edit] lutetium

71 ytterbium ← lutetium → hafnium Y ↑ Lu ↓ Lr Periodic Table - Extended Periodic Table
General
Name, Symbol, Number	lutetium, Lu, 71
Chemical series	transition metals
Group, Period, Block	3, 6, d
Appearance	silvery white
Standard atomic weight	174.967(1)  g·mol−1
Electron configuration	[Xe] 4f14 5d1 6s2
Electrons per shell	2, 8, 18, 32, 9, 2
Physical properties
Phase	solid
Density (near r.t.)	9.841  g·cm−3
Liquid density at m.p.	9.3  g·cm−3
Melting point	1925 K (1652 °C, 3006 °F)
Boiling point	3675 K (3402 °C, 6156 °F)
Heat of fusion	ca. 22  kJ·mol−1
Heat of vaporization	414  kJ·mol−1
Specific heat capacity	(25 °C) 26.86  J·mol−1·K−1
Vapor pressure P(Pa) 1 10 100 1 k 10 k 100 k at T(K) 1906 2103 2346 (2653) (3072) (3663)
Atomic properties
Crystal structure	hexagonal
Oxidation states	3 (weakly basic oxide)
Electronegativity	1.27 (Pauling scale)
Ionization energies (more)	1st:  523.5  kJ·mol−1
	2nd:  1340  kJ·mol−1
	3rd:  2022.3  kJ·mol−1
Atomic radius	175  pm
Atomic radius (calc.)	217  pm
Covalent radius	160  pm
Miscellaneous
Magnetic ordering	no data
Electrical resistivity	(r.t.) (poly) 582 nΩ·m
Thermal conductivity	(300 K) 16.4  W·m−1·K−1
Thermal expansion	(r.t.) (poly) 9.9 µm/(m·K)
Young's modulus	68.6  GPa
Shear modulus	27.2  GPa
Bulk modulus	47.6  GPa
Poisson ratio	0.261
Vickers hardness	1160  MPa
Brinell hardness	893  MPa
CAS registry number	7439-94-3
Selected isotopes
Main article: Isotopes of femto/elements e9 iso NA half-life DM DE (MeV) DP 173Lu syn 1.37 y ε 0.671 173Yb 174Lu syn 3.31 y ε 1.374 174Yb 175Lu 97.41% 175Lu is stable with 104 neutrons 176Lu 2.59% 3.78 E10 y β- 1.193 176Hf
References

[edit] hafnium

72 lutetium ← hafnium → tantalum Zr ↑ Hf ↓ Rf Periodic Table - Extended Periodic Table
General
Name, Symbol, Number	hafnium, Hf, 72
Chemical series	transition metals
Group, Period, Block	4, 6, d
Appearance	gray steel
Standard atomic weight	178.49(2)  g·mol−1
Electron configuration	[Xe] 4f14 5d2 6s2
Electrons per shell	2, 8, 18, 32, 10, 2
Physical properties
Phase	solid
Density (near r.t.)	13.31  g·cm−3
Liquid density at m.p.	12  g·cm−3
Melting point	2506 K (2233 °C, 4051 °F)
Boiling point	4876 K (4603 °C, 8317 °F)
Heat of fusion	27.2  kJ·mol−1
Heat of vaporization	571  kJ·mol−1
Specific heat capacity	(25 °C) 25.73  J·mol−1·K−1
Vapor pressure P(Pa) 1 10 100 1 k 10 k 100 k at T(K) 2689 2954 3277 3679 4194 4876
Atomic properties
Crystal structure	hexagonal
Oxidation states	4 (amphoteric oxide)
Electronegativity	1.3 (Pauling scale)
Ionization energies (more)	1st:  658.5  kJ·mol−1
	2nd:  1440  kJ·mol−1
	3rd:  2250  kJ·mol−1
Atomic radius	155  pm
Atomic radius (calc.)	208  pm
Covalent radius	150  pm
Miscellaneous
Magnetic ordering	no data
Electrical resistivity	(20 °C) 331 n Ω·m
Thermal conductivity	(300 K) 23.0  W·m−1·K−1
Thermal expansion	(25 °C) 5.9  µm·m−1·K−1
Speed of sound (thin rod)	(20 °C) 3010 m/s
Young's modulus	78  GPa
Shear modulus	30  GPa
Bulk modulus	110  GPa
Poisson ratio	0.37
Mohs hardness	5.5
Vickers hardness	1760  MPa
Brinell hardness	1700  MPa
CAS registry number	7440-58-6
Selected isotopes
Main article: Isotopes of femto/elements e9 iso NA half-life DM DE (MeV) DP 172Hf syn 1.87 y ε 0.350 172Lu 174Hf 0.162% 2 E15 y α 2.495 170Yb 176Hf 5.206% 176Hf is stable with 104 neutrons 177Hf 18.606% 177Hf is stable with 105 neutrons 178Hf 27.297% 178Hf is stable with 106 neutrons 179Hf 13.629% 179Hf is stable with 107 neutrons 180Hf 35.1% 180Hf is stable with 108 neutrons 182Hf syn 9 E6 y β 0.373 182Ta
References

[edit] tantalum

73 hafnium ← tantalum → tungsten Nb ↑ Ta ↓ Db Periodic Table - Extended Periodic Table
General
Name, Symbol, Number	tantalum, Ta, 73
Chemical series	transition metals
Group, Period, Block	5, 6, d
Appearance	gray blue
Standard atomic weight	180.9479(1)  g·mol−1
Electron configuration	[Xe] 4f14 5d3 6s2
Electrons per shell	2, 8, 18, 32, 11, 2
Physical properties
Phase	solid
Density (near r.t.)	16.69  g·cm−3
Liquid density at m.p.	15  g·cm−3
Melting point	3290 K (3017 °C, 5463 °F)
Boiling point	5731 K (5458 °C, 9856 °F)
Heat of fusion	36.57  kJ·mol−1
Heat of vaporization	732.8  kJ·mol−1
Specific heat capacity	(25 °C) 25.36  J·mol−1·K−1
Vapor pressure P(Pa) 1 10 100 1 k 10 k 100 k at T(K) 3297 3597 3957 4395 4939 5634
Atomic properties
Crystal structure	cubic body centered
Oxidation states	5 (mildly acidic oxide)
Electronegativity	1.5 (Pauling scale)
Ionization energies	1st: 761 kJ/mol
	2nd: 1500 kJ/mol
Atomic radius	145  pm
Atomic radius (calc.)	200  pm
Covalent radius	138  pm
Miscellaneous
Magnetic ordering	no data
Electrical resistivity	(20 °C) 131 n Ω·m
Thermal conductivity	(300 K) 57.5  W·m−1·K−1
Thermal expansion	(25 °C) 6.3  µm·m−1·K−1
Speed of sound (thin rod)	(20 °C) 3400 m/s
Young's modulus	186  GPa
Shear modulus	69  GPa
Bulk modulus	200  GPa
Poisson ratio	0.34
Mohs hardness	6.5
Vickers hardness	873  MPa
Brinell hardness	800  MPa
CAS registry number	7440-25-7
Selected isotopes
Main article: Isotopes of femto/elements e9 iso NA half-life DM DE (MeV) DP 177Ta syn 56,56 h ε 1,166 177Hf 178Ta syn 2,36 h ε 1,910 178Hf 179Ta syn 1,82 a ε 0,110 179Hf 180Ta syn 8,125 h ε 0,854 180Hf 180Ta syn 8,125 h β- 0,708 180W 180mTa 0,012% >1,2 · 1015 a ε 0,929 180Hf 180mTa 0,012% >1,2 · 1015 a β- 0,783 180W 180mTa 0,012% >1,2 · 1015 a IT 0,075 180Ta 181Ta 99,988 % 181Ta is stable with 108 neutrons 182Ta syn 114,43 d β- 1,814 182W 183Ta syn 5,1 d β- 1,070 183W
References

[edit] tungsten

74 tantalum ← tungsten → rhenium Mo ↑ W ↓ Sg Periodic Table - Extended Periodic Table
General
Name, Symbol, Number	tungsten, W, 74
Chemical series	transition metals
Group, Period, Block	6, 6, d
Appearance	grayish white, lustrous
Standard atomic weight	183.84(1)  g·mol−1
Electron configuration	[Xe] 4f14 5d4 6s2
Electrons per shell	2, 8, 18, 32, 12, 2
Physical properties
Phase	solid
Density (near r.t.)	19.25  g·cm−3
Liquid density at m.p.	17.6  g·cm−3
Melting point	3695 K (3422 °C, 6192 °F)
Boiling point	5828 K (5555 °C, 10031 °F)
Heat of fusion	52.31  kJ·mol−1
Heat of vaporization	806.7  kJ·mol−1
Specific heat capacity	(25 °C) 24.27  J·mol−1·K−1
Vapor pressure P(Pa) 1 10 100 1 k 10 k 100 k at T(K) 3477 3773 4137 4579 5127 5823
Atomic properties
Crystal structure	cubic body centered
Oxidation states	6, 5, 4, 3, 2 (mildly acidic oxide)
Electronegativity	2.36 (Pauling scale)
Ionization energies	1st: 770 kJ/mol
	2nd: 1700 kJ/mol
Atomic radius	135  pm
Atomic radius (calc.)	193  pm
Covalent radius	146  pm
Miscellaneous
Magnetic ordering	no data
Electrical resistivity	(20 °C) 52.8 n Ω·m
Thermal conductivity	(300 K) 173  W·m−1·K−1
Thermal expansion	(25 °C) 4.5  µm·m−1·K−1
Speed of sound (thin rod)	(r.t.) (annealed) 4620  m·s−1
Young's modulus	411  GPa
Shear modulus	161  GPa
Bulk modulus	310  GPa
Poisson ratio	0.28
Mohs hardness	7.5
Vickers hardness	3430  MPa
Brinell hardness	2570  MPa
CAS registry number	7440-33-7
Selected isotopes
Main article: Isotopes of femto/elements e9 iso NA half-life DM DE (MeV) DP 180W 0.12% 1.8 E18 y α 2.516 176Hf 181W syn 121.2 d ε 0.188 181Ta 182W 26.50% > 1 E21 y α not observed 183W 14.3% > 1 E21 y α not observed 184W 30.64% > 1 E21 y α not observed 185W syn 75.1 d β- 0.433 185Re 186W 28.43% > 1 E21 y α not observed
References

[edit] rhenium

75 tungsten ← rhenium → osmium Tc ↑ Re ↓ Bh Periodic Table - Extended Periodic Table
General
Name, Symbol, Number	rhenium, Re, 75
Chemical series	transition metals
Group, Period, Block	7, 6, d
Appearance	grayish white
Standard atomic weight	186.207(1)  g·mol−1
Electron configuration	[Xe] 4f14 5d5 6s2
Electrons per shell	2, 8, 18, 32, 13, 2
Physical properties
Phase	solid
Density (near r.t.)	21.02  g·cm−3
Liquid density at m.p.	18.9  g·cm−3
Melting point	3459 K (3186 °C, 5767 °F)
Boiling point	5869 K (5596 °C, 10105 °F)
Heat of fusion	60.43  kJ·mol−1
Heat of vaporization	704  kJ·mol−1
Specific heat capacity	(25 °C) 25.48  J·mol−1·K−1
Vapor pressure P(Pa) 1 10 100 1 k 10 k 100 k at T(K) 3303 3614 4009 4500 5127 5954
Atomic properties
Crystal structure	hexagonal
Oxidation states	6, 4, 2, −2 (mildly acidic oxide)
Electronegativity	1.9 (Pauling scale)
Ionization energies (more)	1st:  760  kJ·mol−1
	2nd:  1260  kJ·mol−1
	3rd:  2510  kJ·mol−1
Atomic radius	135  pm
Atomic radius (calc.)	188  pm
Covalent radius	159  pm
Miscellaneous
Magnetic ordering	???
Electrical resistivity	(20 °C) 193 n Ω·m
Thermal conductivity	(300 K) 48.0  W·m−1·K−1
Thermal expansion	(25 °C) 6.2  µm·m−1·K−1
Speed of sound (thin rod)	(20 °C) 4700 m/s
Young's modulus	463  GPa
Shear modulus	178  GPa
Bulk modulus	370  GPa
Poisson ratio	0.30
Mohs hardness	7.0
Vickers hardness	2450  MPa
Brinell hardness	1320  MPa
CAS registry number	7440-15-5
Selected isotopes
Main article: Isotopes of femto/elements e9 iso NA half-life DM DE (MeV) DP 185Re 37.4% 185Re is stable with 110 neutrons 187Re 62.6% 4.35 E10 y α 1.653 183Ta 187Re 62.6% 4.35 E10 y β 0.003 187Os
References

[edit] osmium

76 rhenium ← osmium → iridium Ru ↑ Os ↓ Hs Periodic Table - Extended Periodic Table
General
Name, Symbol, Number	osmium, Os, 76
Chemical series	transition metals
Group, Period, Block	8, 6, d
Appearance	silvery, blue cast
Standard atomic weight	190.23(3)  g·mol−1
Electron configuration	[Xe] 4f14 5d6 6s2
Electrons per shell	2, 8, 18, 32, 14, 2
Physical properties
Phase	solid
Density (near r.t.)	22.61  g·cm−3
Liquid density at m.p.	20  g·cm−3
Melting point	3306 K (3033 °C, 5491 °F)
Boiling point	5285 K (5012 °C, 9054 °F)
Heat of fusion	57.85  kJ·mol−1
Heat of vaporization	738  kJ·mol−1
Specific heat capacity	(25 °C) 24.7  J·mol−1·K−1
Vapor pressure P(Pa) 1 10 100 1 k 10 k 100 k at T(K) 3160 3423 3751 4148 4638 5256
Atomic properties
Crystal structure	hexagonal
Oxidation states	±0.7 (mildly acidic oxide)
Electronegativity	2.2 (Pauling scale)
Ionization energies	1st: 840 kJ/mol
	2nd: 1600 kJ/mol
Atomic radius	130  pm
Atomic radius (calc.)	185  pm
Covalent radius	128  pm
Miscellaneous
Magnetic ordering	???
Electrical resistivity	(0 °C) 81.2 nΩ·m
Thermal conductivity	(300 K) 87.6  W·m−1·K−1
Thermal expansion	(25 °C) 5.1  µm·m−1·K−1
Speed of sound (thin rod)	(20 °C) 4940 m/s
Shear modulus	222  GPa
Poisson ratio	0.25
Mohs hardness	7.0
Brinell hardness	3920  MPa
CAS registry number	7440-04-2
Selected isotopes
Main article: Isotopes of femto/elements e9 iso NA half-life DM DE (MeV) DP 184Os 0.02% 5.6 E13 y α  ? 180W 185Os syn 93,6 d ε 1.013 185Re 186Os 1.58% >2.0 E15 y α 2.822 182W 187Os 1.6% 187Os is stable with 111 neutrons 188Os 13.3% 188Os is stable with 112 neutrons 189Os 16.1% 189Os is stable with 113 neutrons 190Os 24.6% 190Os is stable with 114 neutrons 191Os syn 15.4 d β- 0.314 191Ir 192Os 41.0% 192Os is stable with 116 neutrons 193Os syn 30.11 d β- 1.141 193Ir 194Os syn 6 y β- 0.097 194Ir
References

[edit] iridium

77 osmium ← iridium → platinum Rh ↑ Ir ↓ Mt Periodic Table - Extended Periodic Table
General
Name, Symbol, Number	iridium, Ir, 77
Chemical series	transition metals
Group, Period, Block	9, 6, d
Appearance	silvery white
Standard atomic weight	192.217(3)  g·mol−1
Electron configuration	[Xe] 4f14 5d7 6s2
Electrons per shell	2, 8, 18, 32, 15, 2
Physical properties
Phase	solid
Density (near r.t.)	22.65  g·cm−3
Liquid density at m.p.	19  g·cm−3
Melting point	2719 K (2446 °C, 4435 °F)
Boiling point	4701 K (4428 °C, 8002 °F)
Heat of fusion	41.12  kJ·mol−1
Heat of vaporization	231.8  kJ·mol−1
Specific heat capacity	(25 °C) 25.10  J·mol−1·K−1
Vapor pressure P(Pa) 1 10 100 1 k 10 k 100 k at T(K) 2713 2957 3252 3614 4069 4659
Atomic properties
Crystal structure	cubic face centered
Oxidation states	2, 3, 4, 6 (mildly basic oxide)
Electronegativity	2.20 (Pauling scale)
Ionization energies	1st: 880 kJ/mol
	2nd: 1600 kJ/mol
Atomic radius	135  pm
Atomic radius (calc.)	180  pm
Covalent radius	137  pm
Miscellaneous
Magnetic ordering	no data
Electrical resistivity	(20 °C) 47.1 n Ω·m
Thermal conductivity	(300 K) 147  W·m−1·K−1
Thermal expansion	(25 °C) 6.4  µm·m−1·K−1
Speed of sound (thin rod)	(20 °C) 4825 m/s
Young's modulus	528  GPa
Shear modulus	210  GPa
Bulk modulus	320  GPa
Poisson ratio	0.26
Mohs hardness	6.5
Vickers hardness	1760  MPa
Brinell hardness	1670  MPa
CAS registry number	7439-88-5
Selected isotopes
Main article: Isotopes of femto/elements e9 iso NA half-life DM DE (MeV) DP 189Ir syn 13,2 d ε 0,532 189Os 190Ir syn 11,78 d ε 2,000 190Os 191Ir 37.3% 191Ir is stable with 114 neutrons 192Ir syn 73,830 d β 1,460 192Pt 192Ir syn 73,830 d ε 1,046 192Os 192mIr syn 241 a IT 0,155 192Ir 193Ir 62.7% 193Ir is stable with 116 neutrons 194Ir syn 19,15 h β< 2,247 194Pt 195Ir syn 2,5 h β< 1,120 195Pt
References

[edit] platinum

78 iridium ← platinum → gold Pd ↑ Pt ↓ Ds Periodic Table - Extended Periodic Table
General
Name, Symbol, Number	platinum, Pt, 78
Chemical series	transition metals
Group, Period, Block	10, 6, d
Appearance	grayish white
Standard atomic weight	195.078(2)  g·mol−1
Electron configuration	[Xe] 4f14 5d9 6s1
Electrons per shell	2, 8, 18, 32, 17, 1
Physical properties
Phase	solid
Density (near r.t.)	21.09  g·cm−3
Liquid density at m.p.	19.77  g·cm−3
Melting point	2041.4 K (1768.3 °C, 3214.9 °F)
Boiling point	4098 K (3825 °C, 6917 °F)
Heat of fusion	22.17  kJ·mol−1
Heat of vaporization	469  kJ·mol−1
Specific heat capacity	(25 °C) 25.86  J·mol−1·K−1
Vapor pressure P(Pa) 1 10 100 1 k 10 k 100 k at T(K) 2330 (2550) 2815 3143 3556 4094
Atomic properties
Crystal structure	cubic face centered
Oxidation states	2, 4 (mildly basic oxide)
Electronegativity	2.28 (Pauling scale)
Ionization energies	1st: 870 kJ/mol
	2nd: 1791 kJ/mol
Atomic radius	135  pm
Atomic radius (calc.)	177  pm
Covalent radius	128  pm
Van der Waals radius	175 pm
Miscellaneous
Magnetic ordering	paramagnetic
Electrical resistivity	(20 °C) 105 n Ω·m
Thermal conductivity	(300 K) 71.6  W·m−1·K−1
Thermal expansion	(25 °C) 8.8  µm·m−1·K−1
Speed of sound (thin rod)	(r.t.) 2800  m·s−1
Young's modulus	168  GPa
Shear modulus	61  GPa
Bulk modulus	230  GPa
Poisson ratio	0.38
Mohs hardness	3.5
Vickers hardness	549  MPa
Brinell hardness	392  MPa
CAS registry number	7440-06-4
Selected isotopes
Main article: Isotopes of femto/elements e9 iso NA half-life DM DE (MeV) DP 190Pt 0.01% 6.5 E11 y α 3.18 186Os 191Pt syn 2.96 d ε  ? 191Ir 192Pt 0.79% 192Pt is stable with 114 neutrons 193mPt syn 4.33 d IT 0.1355e 193Pt 193Pt syn 50 y ε  ? 193Ir 194Pt 32.9% 194Pt is stable with 116 neutrons 195mPt syn 4.02 d IT 0.1297e 195Pt 195Pt 33.8% 195Pt is stable with 117 neutrons 196Pt 25.3% 196Pt is stable with 118 neutrons 197mPt syn 1.59 h IT 0.3465 197Pt 197Pt syn 19.8913 h β- 0.719 197Au 198Pt 7.2% 198Pt is stable with 120 neutrons
References

[edit] gold

79 platinum ← gold → mercury Ag ↑ Au ↓ Rg Periodic Table - Extended Periodic Table
General
Name, Symbol, Number	gold, Au, 79
Chemical series	transition metals
Group, Period, Block	11, 6, d
Appearance	metallic yellow
Standard atomic weight	196.96655(2)  g·mol−1
Electron configuration	[Xe] 4f14 5d10 6s1
Electrons per shell	2, 8, 18, 32, 18, 1
Physical properties
Phase	solid
Density (near r.t.)	19.3  g·cm−3
Liquid density at m.p.	17.31  g·cm−3
Melting point	1337.33 K (1064.18 °C, 1947.52 °F)
Boiling point	3129 K (2856 °C, 5173 °F)
Heat of fusion	12.55  kJ·mol−1
Heat of vaporization	324  kJ·mol−1
Specific heat capacity	(25 °C) 25.418  J·mol−1·K−1
Vapor pressure P(Pa) 1 10 100 1 k 10 k 100 k at T(K) 1646 1814 2021 2281 2620 3078
Atomic properties
Crystal structure	cubic face centered
Oxidation states	3, 1 (amphoteric oxide)
Electronegativity	2.54 (Pauling scale)
Ionization energies	1st: 890.1 kJ/mol
	2nd: 1980 kJ/mol
Atomic radius	135  pm
Atomic radius (calc.)	174  pm
Covalent radius	144  pm
Van der Waals radius	166 pm
Miscellaneous
Magnetic ordering	no data
Electrical resistivity	(20 °C) 22.14 n Ω·m
Thermal conductivity	(300 K) 318  W·m−1·K−1
Thermal expansion	(25 °C) 14.2  µm·m−1·K−1
Speed of sound (thin rod)	(r.t.) (hard-drawn) 2030  m·s−1
Young's modulus	78  GPa
Shear modulus	27  GPa
Bulk modulus	220  GPa
Poisson ratio	0.44
Mohs hardness	2.5
Vickers hardness	216  MPa
Brinell hardness	2450  MPa
CAS registry number	7440-57-5
Selected isotopes
Main article: Isotopes of femto/elements e9 iso NA half-life DM DE (MeV) DP 195Au syn 186.10 d ε 0.227 195Pt 196Au syn 6.183 d ε 1.506 196Pt 196Au syn 6.183 d β 0.686 196Hg 197Au 100 % 197Au is stable with 118 neutrons 198Au syn 2.69517 d β- 1.372 198Hg 199Au syn 3.169 d β- 0.453 199Hg
References

[edit] mercury

80 gold ← mercury → thallium Cd ↑ Hg ↓ Uub Periodic Table - Extended Periodic Table
General
Name, Symbol, Number	mercury, Hg, 80
Chemical series	transition metals
Group, Period, Block	12, 6, d
Appearance	silvery white
Standard atomic weight	200.59(2)  g·mol−1
Electron configuration	[Xe] 4f14 5d10 6s2
Electrons per shell	2, 8, 18, 32, 18, 2
Physical properties
Phase	liquid
Density (near r.t.)	(liquid) 13.534  g·cm−3
Melting point	234.32 K (-38.83 °C, -37.89 °F)
Boiling point	629.88 K (356.73 °C, 674.11 °F)
Heat of fusion	2.29  kJ·mol−1
Heat of vaporization	59.11  kJ·mol−1
Specific heat capacity	(25 °C) 27.983  J·mol−1·K−1
Vapor pressure P(Pa) 1 10 100 1 k 10 k 100 k at T(K) 315 350 393 449 523 629
Atomic properties
Crystal structure	rhombohedral
Oxidation states	2, 1 (mildly basic oxide)
Electronegativity	2.00 (Pauling scale)
Ionization energies	1st: 1007.1 kJ/mol
	2nd: 1810 kJ/mol
	3rd: 3300 kJ/mol
Atomic radius	150  pm
Atomic radius (calc.)	171  pm
Covalent radius	149  pm
Van der Waals radius	155 pm
Miscellaneous
Magnetic ordering	diamagnetic
Electrical resistivity	(25 °C) 961 nΩ·m
Thermal conductivity	(300 K) 8.30  W·m−1·K−1
Thermal expansion	(25 °C) 60.4  µm·m−1·K−1
Speed of sound	(liquid, 20 °C) 1451.4 m/s
CAS registry number	7439-97-6
Selected isotopes
Main article: Isotopes of femto/elements e9 iso NA half-life DM DE (MeV) DP 194Hg syn 444 y ε 0.040 194Au 195Hg syn 9.9 h ε 1.510 195Au 196Hg 0.15% 196Hg is stable with 116 neutrons 197Hg syn 64.14 h ε 0.600 197Au 198Hg 9.97% 198Hg is stable with 118 neutrons 199Hg 16.87% 199Hg is stable with 119 neutrons 200Hg 23.1% 200Hg is stable with 120 neutrons 201Hg 13.18% 201Hg is stable with 121 neutrons 202Hg 29.86% 202Hg is stable with 122 neutrons 203Hg syn 46.612 d β- 0.492 203Tl 204Hg 6.87% 204Hg is stable with 124 neutrons
References