Template:Infobox mercury

gold ← mercury → thallium Cd ↑ Hg ↓ Cn 80Hg Periodic table
Appearance
silvery Spectral lines of mercury (UV not seen)
General properties
Name, symbol, number	mercury, Hg, 80
Pronunciation	/ˈmɜrkjəri/ or /ˈmɜrkəri/ mer-k(y)ə-ree alternatively /ˈkwɪksɪlvər/ or /haɪˈdrɑrdʒɨrəm/ hye-drar-ji-rəm
Element category	transition metal
Group, period, block	12, 6, d
Standard atomic weight	200.59(2)
Electron configuration	[Xe] 4f14 5d10 6s2
Electrons per shell	2, 8, 18, 32, 18, 2 (Image)
Physical properties
Phase	liquid
Density (near r.t.)	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
Critical point	1750 K, 172.00 MPa
Heat of fusion	2.29 kJ·mol−1
Heat of vaporization	59.11 kJ·mol−1
Molar heat capacity	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
Oxidation states	4, 2 (mercuric), 1 (mercurous) (mildly basic oxide)
Electronegativity	2.00 (Pauling scale)
Ionization energies	1st: 1007.1 kJ·mol−1
	2nd: 1810 kJ·mol−1
	3rd: 3300 kJ·mol−1
Atomic radius	151 pm
Covalent radius	132±5 pm
Van der Waals radius	155 pm
Miscellanea
Crystal structure	rhombohedral
Magnetic ordering	diamagnetic
Electrical resistivity	(25 °C) 961nΩ·m
Thermal conductivity	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−1
CAS registry number	7439-97-6
Most stable isotopes
Main article: Isotopes of mercury
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

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