Revision as of 01:43, 18 February 2021 by imported>Double sharp
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Mercury, 80Hg |
Mercury |
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Appearance | shiny, silvery liquid |
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Standard atomic weight Ar, std(Hg) | Template:Val[1] |
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Mercury in the periodic table |
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Atomic number (Z) | 80 |
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Group | group 12 |
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Period | period 6 |
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Block | d-block |
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Electron configuration | [Xe] 4f14 5d10 6s2 |
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Electrons per shell | 2, 8, 18, 32, 18, 2 |
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Physical properties |
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Phase at STP | liquid |
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Melting point | 234.3210 K (−38.8290 °C, −37.8922 °F) |
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Boiling point | 629.88 K (356.73 °C, 674.11 °F) |
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Density (near r.t.) | 13.534 g/cm3 |
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Triple point | 234.3156 K, 1.65×10−7 kPa |
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Critical point | 1750 K, 172.00 MPa |
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Heat of fusion | 2.29 kJ/mol |
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Heat of vaporization | 59.11 kJ/mol |
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Molar heat capacity | 27.983 J/(mol·K) |
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Vapor pressure
P (Pa)
|
1
|
10
|
100
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1 k
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10 k
|
100 k
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at T (K)
|
315
|
350
|
393
|
449
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523
|
629
|
|
Atomic properties |
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Oxidation states | −2 , +1, +2 (a mildly basic oxide) |
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Electronegativity | Pauling scale: 2.00 |
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Ionization energies | - 1st: 1007.1 kJ/mol
- 2nd: 1810 kJ/mol
- 3rd: 3300 kJ/mol
-
|
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Atomic radius | empirical: 151 pm |
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Covalent radius | 132±5 pm |
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Van der Waals radius | 155 pm |
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Other properties |
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Natural occurrence | primordial |
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Crystal structure | rhombohedral |
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Speed of sound | liquid: 1451.4 m/s (at 20 °C) |
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Thermal expansion | 60.4 µm/(m·K) (at 25 °C) |
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Thermal conductivity | 8.30 W/(m·K) |
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Electrical resistivity | 961 nΩ·m (at 25 °C) |
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Magnetic ordering | diamagnetic[2] |
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Magnetic susceptibility | −33.44·10−6 cm3/mol (293 K)[3] |
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CAS Number | 7439-97-6 |
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History |
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Discovery | Ancient Egyptians (before 1500 BCE) |
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Main isotopes of mercury |
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Category: Mercury (element) | references |
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References
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