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| Ìfarahàn |
Colorless gas with purple glow in its plasma state


Spectral lines of Hydrogen |
| Àwọn ìní àníkárí |
| Orúkọ, àmì-ìdámọ̀, nọ́mbà |
hydrogen, H, 1 |
| Ìpè |
/ˈhaɪdrɵdʒɨn/[1] HYE-dro-jin |
| Ẹ̀ka apilẹ̀sẹ̀ |
nonmetal |
| Àdìpọ̀, ìgbà, block |
1, 1, s |
| Ìwúwo átọ́mù |
1.00794(7) g·mol−1 |
| Ìtòjọ ẹ̀lẹ́ktrónì |
1s1 |
| Àwọn ẹ̀lẹ́ktrónì lórí ọ̀nà kan |
1 (Image) |
| Àwọn ìní aláfójúrí |
| Àwọ̀ |
aláìláwọ̀ |
| Phase |
ẹ̀fúùfù |
| Kíki |
(0 °C, 101.325 kPa)
0.08988 g/L |
| Liquid density at m.p. |
0.07 (0.0763 solid)[2] g·cm−3 |
| ojúàmì ìyọ́ |
14.01 K, -259.14 °C, -434.45 °F |
| ajúàmì ìhó |
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 |
| Specific 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 |
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15 |
20 |
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| Atomic properties |
| 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 |
| Miscellanea |
| Crystal structure |
hexagonal |
| Magnetic ordering |
diamagnetic[3] |
| 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 |
| Most stable isotopes |
| Main article: Isotopes of hydrogen |
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Háídrójìn tabi Hydrogen (pípè /ˈhaɪdrɵdʒɨn/,[4] HYE-dro-jin) je apilese kemika pelu nomba atomu 1. O je sisoju fun latowo ami-idamo H. Pelu iwuwo atomu iye 1.00794 u (1.007825 u fun Hydrogen-1), hydrogen ni apilese kemika tofuyejulo ati tolopojulo, o je bi 75 % gbogbo isupo apilese Agbalaaye.[5] Awon irawo ninu telentele olori je ni pataki kiki haidojin ni iwa plasma re. Ki haidrojin o da wa fun ra ara re ni Aye sowon gan.
- ↑ Simpson, J.A.; Weiner, E.S.C. (1989). "Hydrogen". Oxford English Dictionary. 7 (2nd ed.). Clarendon Press. ISBN 0-19-861219-2.
- ↑ Wiberg, Egon; Wiberg, Nils; Holleman, Arnold Frederick (2001). Inorganic chemistry. Academic Press. p. 240. ISBN 0123526515. http://books.google.com/books?id=vEwj1WZKThEC&pg=PA240.
- ↑ Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics 81st edition, CRC press.
- ↑ Simpson, J.A.; Weiner, E.S.C. (1989). "Hydrogen". Oxford English Dictionary. 7 (2nd ed.). Clarendon Press. ISBN 0-19-861219-2.
- ↑ Palmer, D. (13 September 1997). "Hydrogen in the Universe". NASA. http://imagine.gsfc.nasa.gov/docs/ask_astro/answers/971113i.html. Retrieved 2008-02-05.