మూస:Infobox hydrogen

హైడ్రోజన్, ₀₀H
	Purple glow in its plasma state
హైడ్రోజన్
Appearance	colorless gas
Standard atomic weight Ar°(H)
	[1.00784, 1.00811]; 1.0080±0.0002 (abridged);
హైడ్రోజన్ in the periodic table
	- ← హైడ్రోజన్ → హీలియం
Group	మూస:Infobox element/symbol-to-group/format
Period	period 1
Block	s-block
Electron configuration	1s1
Electrons per shell	1
Physical properties
Color	రంగులేనిది
Phase at STP	gas
Melting point	13.99 K (-259.16 °C, -434.49 °F)
Boiling point	20.271 K (-252.879 °C, -423.182 °F)
Density (at STP)	0.08988 g/L
when liquid (at m.p.)	0.07 (0.0763 solid) g/cm3
when liquid (at b.p.)	0.07099 g/cm3
Triple point	13.8033 K, 7.041 kPa
Critical point	32.938 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)
Atomic properties
Oxidation states	−1, 0, +1 (an amphoteric oxide)
Electronegativity	Pauling scale: 2.20
Covalent radius	31±5 pm
Van der Waals radius	120 pm
	Spectral lines of హైడ్రోజన్
Other properties
Natural occurrence	primordial
Crystal structure	hexagonal
Speed of sound	(gas, 27 °C) 1310 m/s
Thermal conductivity	0.1805 W/(m⋅K)
Magnetic ordering	diamagnetic
CAS Number	1333-74-0
History
Discovery	హెన్రీ కేవిండిష్ (1766)
Named by	ఆంటోనీ లావోయిజర్ (1783)
Isotopes of హైడ్రోజన్ v; e;
	Template:infobox హైడ్రోజన్ isotopes does not exist
	Category: హైడ్రోజన్; view; talk; edit; \| references

References

↑ "Standard Atomic Weights: Hydrogen". CIAAW. 2009.
↑ 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.
↑ Wiberg, Egon; Wiberg, Nils; Holleman, Arnold Frederick (2001). Inorganic chemistry. Academic Press. p. 240. ISBN 0123526515.
↑ "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (81st ed.). CRC Press.
↑ "Hydrogen". Van Nostrand's Encyclopedia of Chemistry. Wylie-Interscience. 2005. pp. 797–799. ISBN 0-471-61525-0.
↑ Emsley, John (2001). Nature's Building Blocks. Oxford: Oxford University Press. pp. 183–191. ISBN 0-19-850341-5.
↑ Stwertka, Albert (1996). A Guide to the Elements. Oxford University Press. pp. 16–21. ISBN 0-19-508083-1.
↑ Simpson, J.A.; Weiner, E.S.C. (1989). "Hydrogen". Oxford English Dictionary. Vol. 7 (2nd ed.). Clarendon Press. ISBN 0-19-861219-2.

[1] "Standard Atomic Weights: Hydrogen". CIAAW. 2009.

[CIAAW2021-2] 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.

[Nostrand-5] "Hydrogen". Van Nostrand's Encyclopedia of Chemistry. Wylie-Interscience. 2005. pp. 797–799. ISBN 0-471-61525-0.

[nbb-6] Emsley, John (2001). Nature's Building Blocks. Oxford: Oxford University Press. pp. 183–191. ISBN 0-19-850341-5.

[Stwertka-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.

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