హైడ్రోజన్, 00H
Purple glow in its plasma state
హైడ్రోజన్
Appearancecolorless gas
Standard atomic weight Ar°(H)
హైడ్రోజన్ 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
-

H

Li
- ← హైడ్రోజన్హీలియం
Groupమూస:Infobox element/symbol-to-group/format
Periodperiod 1
Block  s-block
Electron configuration1s1
Electrons per shell1
Physical properties
Colorరంగులేనిది
Phase at STPgas
Melting point13.99 K ​(-259.16 °C, ​-434.49 °F)
Boiling point20.271 K ​(-252.879 °C, ​-423.182 °F)
Density (at STP)0.08988 g/L
when liquid (at m.p.)0.07 (0.0763 solid)[3] g/cm3
when liquid (at b.p.)0.07099 g/cm3
Triple point13.8033 K, ​7.041 kPa
Critical point32.938 K, 1.2858 MPa
Heat of fusion(H2) 0.117 kJ/mol
Heat of vaporization(H2) 0.904 kJ/mol
Molar heat capacity(H2) 28.836 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 15 20
Atomic properties
Oxidation states−1, 0, +1 (an amphoteric oxide)
ElectronegativityPauling scale: 2.20
Covalent radius31±5 pm
Van der Waals radius120 pm
Color lines in a spectral range
Spectral lines of హైడ్రోజన్
Other properties
Natural occurrenceprimordial
Crystal structurehexagonal
Hexagonal crystal structure for హైడ్రోజన్
Speed of sound(gas, 27 °C) 1310 m/s
Thermal conductivity0.1805 W/(m⋅K)
Magnetic orderingdiamagnetic[4]
CAS Number1333-74-0
History
Discoveryహెన్రీ కేవిండిష్[5][6] (1766)
Named byఆంటోనీ లావోయిజర్[7] (1783)
Isotopes of హైడ్రోజన్
Template:infobox హైడ్రోజన్ isotopes does not exist
 Category: హైడ్రోజన్
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References

  1. "Standard Atomic Weights: Hydrogen". CIAAW. 2009.
  2. Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; et al. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry (in ఇంగ్లీష్). doi:10.1515/pac-2019-0603. ISSN 1365-3075.
  3. Wiberg, Egon; Wiberg, Nils; Holleman, Arnold Frederick (2001). Inorganic chemistry. Academic Press. p. 240. ISBN 0123526515.
  4. "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (81st ed.). CRC Press.
  5. "Hydrogen". Van Nostrand's Encyclopedia of Chemistry. Wylie-Interscience. 2005. pp. 797–799. ISBN 0-471-61525-0.
  6. Emsley, John (2001). Nature's Building Blocks. Oxford: Oxford University Press. pp. 183–191. ISBN 0-19-850341-5.
  7. Stwertka, Albert (1996). A Guide to the Elements. Oxford University Press. pp. 16–21. ISBN 0-19-508083-1.
  8. Simpson, J.A.; Weiner, E.S.C. (1989). "Hydrogen". Oxford English Dictionary. Vol. 7 (2nd ed.). Clarendon Press. ISBN 0-19-861219-2.