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| Chemical symbol | H |
| Atomic number | 1 |
| Electron configuration | 1s 1 |
| Atomic weight | 1.00794 |
| Melting point | -259 °C |
| Boiling point | -253 °C |
| Density (gas) | 0.090 g/L |
| Density (liquid) | 0.070 g/L |
| Ionization potential | 13.598 eV |
| Pauling electronegativity | 2.1 |
| Ionic radius (H - ) | 1.54 Å |
| van der Waal radius | 1.2 Å |
| Explosive limit | 4 - 75% |
| Ignition temperature | 585 °C |
Read also:
OpenStax, Chemistry of the main group elements. OpenStax CNX. Aug 20, 2010 Download for free at http://cnx.org/content/col11124/1.25
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