మూస:Infobox mercury

పాదరసం, ₀₀Hg

పాదరసం
Appearance	silvery
Standard atomic weight Ar°(Hg)
	200.592±0.003 200.59±0.01 (abridged)
పాదరసం in the periodic table
Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Ununtrium Flerovium Ununpentium Livermorium Ununseptium Ununoctium Cd ↑ Hg ↓ Cn బంగారం ← పాదరసం → థాలియం
Group	group 12
Period	period 6
Block	d-block
Electron configuration	[Xe] 4f14 5d10 6s2
Electrons per shell	2, 8, 18, 32, 18, 2
Physical properties
Phase at STP	liquid
Melting point	234.3210 K ​(−38.8290 °C, ​ −37.8922 °F)
Boiling point	629.88 K ​(356.73 °C, ​674.11 °F)
Density (near r.t.)	13.534 g/cm3
Triple point	234.3156 K, ​1.65×10−7 kPa
Critical point	1750 K, 172.00 MPa
Heat of fusion	2.29 kJ/mol
Heat of vaporization	59.11 kJ/mol
Molar heat capacity	27.983 J/(mol·K)
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	−2 , +1, +2 (a mildly basic oxide)
Electronegativity	Pauling scale: 2.00
Atomic radius	empirical: 151 pm
Covalent radius	132±5 pm
Van der Waals radius	155 pm
Spectral lines of పాదరసం
Other properties
Natural occurrence	primordial
Crystal structure	​rhombohedral
Speed of sound	(liquid, 20 °C) 1451.4 m/s
Thermal expansion	60.4 µm/(m⋅K) (at 25 °C)
Thermal conductivity	8.30 W/(m⋅K)
Electrical resistivity	(25 °C) 961n Ω⋅m
Magnetic ordering	diamagnetic
CAS Number	7439-97-6
History
Discovery	Ancient Chinese and Indians (before 2000 BC)
Symbol	"Hg": from its Latin name hydrargyrum, itself from Greek hydrárgyros, 'water-silver'
Isotopes of పాదరసం

References

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