ހައިޑްރަޖަން

1 - ← hydrogen → helium - ↑ H ↓ Li Periodic table - Extended periodic table
General
Name, symbol, number	hydrogen, H, 1
Chemical series	nonmetals
Group, period, block	1, 1, s
Appearance	colorless gas
[[image:{{{image name}}}.jpg|125px|]] Spectral lines of hydrogen
Standard atomic weight	1.008(1) g·mol−1
Electron configuration	1s1
Electrons per shell	1
Physical properties
Color	colorless
Phase	gas
Density	(0 °C, 101.325 kPa) 0.08988 g/L
Liquid density at m.p.	0.07 (0.0763 solid) g·cm−3
Melting point	14.01 K (-259.14 °C, -434.45 °F)
Boiling point	20.28 K (-252.87 °C, -423.17 °F)
Triple point	13.8033 K (-259°C), 7.042 kPa
Critical point	32.97 K, 1.293 MPa
Heat of fusion	(H2) 0.117 kJ·mol−1
Heat of vaporization	(H2) 0.904 kJ·mol−1
Heat capacity	(25 °C) (H2) 28.836 J·mol−1·K−1
Vapor pressure P/Pa 1 10 100 1 k 10 k 100 k at T/K 15 20
Atomic properties
Crystal structure	hexagonal
Oxidation states	1, -1 (amphoteric oxide)
Electronegativity	2.20 (Pauling scale)
Ionization energies	1st: 1312.0 kJ·mol−1
Covalent radius	31±5 pm
Van der Waals radius	120 pm
Miscellaneous
Magnetic ordering	diamagnetic
Thermal conductivity	(300 K) 0.1805 W·m−1·K−1
Speed of sound	(gas, 27 °C) 1310 m/s
CAS registry number	1333-74-0
Selected isotopes
Main article: Isotopes of hydrogen iso NA half-life DM DE (MeV) DP 1H 99.985% 1H is stable with 0 neutrons 2H 0.015% 2H is stable with 1 neutrons 3H trace 12.32 y β− 0.01861 3He
References

ހައިޑްރަޖަން

ހައިޑްރަޖަން (އިނގިރޭސި ބަހުން: Hydrogen)އަކީ ކެމިކަލް ޢުންޞުރެކެވެ. ހައިޑްރަޖަންގެ ރަމްޒަކީ H އެވެ. އަޓޮމިކް ނަމްބަރަކީ 1 އެވެ.

އިތުރަށް ވިދާޅުވުމަށް

• Chart of the Nuclides (Media notes) (17th ed.). Knolls Atomic Power Laboratory. 2010. ISBN 978-0-9843653-0-2.
• Ferreira-Aparicio, P (2005). "New Trends in Reforming Technologies: from Hydrogen Industrial Plants to Multifuel Microreformers". Catalysis Reviews. 47 (4): 491–588. doi:10.1080/01614940500364958. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)
• Newton, David E. (1994). The Chemical Elements (Media notes). New York: Franklin Watts. ISBN 0-531-12501-7.
• Rigden, John S. (2002). Hydrogen: The Essential Element (Media notes). Cambridge, Massachusetts: Harvard University Press. ISBN 0-531-12501-7.
• Romm, Joseph, J. (2004). The Hype about Hydrogen, Fact and Fiction in the Race to Save the Climate (Media notes). Island Press. ISBN 1-55963-703-X.{{cite AV media notes}}: CS1 maint: multiple names: authors list (link) Author interview at Global Public Media.
• Scerri, Eric (2007). The Periodic System, Its Story and Its Significance, (Media notes). New York: Oxford University Press. ISBN 0-19-530573-6.

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