Gallium
| Latin name | Gallium |
| English name | Gallium |
| chemical symbol | Ga |
| atomic number | 31 |
| relative atomic mass | 69,723 |
| period | 4 |
| group | III.A |
| classification | metals |
| discovery year | 1875 |
| discoverer | L. de Boisbaudran |
| melting point [°C] | 29,78 |
| boiling point [°C] | 2204 |
| density [g cm-3] | 5,907 |
| density at melting point [g cm-3] | 6,095 |
| electronegativity [Pauling] | 1,81 |
| oxidation states | I, II, III |
| electron configuration | [Ar]3d10 4s2 4p1 |
| specific heat [J g-1K-1] | 0,37 |
| heat of fusion [kJ mol-1] | 5,59 |
| thermal conductivity [W m-1 K-1] | 29 |
| el. conductivity [S m-1] | 7,1.106 |
| 1. ionizing potential [eV] | 5,9993 |
| 2. ionizing potential [eV] | 20,51 |
| 3. ionizing potential [eV] | 30,71 |
| Mohs hardness | 1,5 |
| Vickers hardness [MPa] | - |
| Brinell hardness [MPa] | 60 |
| point of superconductivity [K] | 1,083 |
| state at normal conditions | solid |
Resources
- BARTHELMY, David. Mineral Species containing Gallium. In: Mineralogy database [online]. 2010 [cit. 2012-06-30]. Available from: http://webmineral.com/
- FEDOROV, Pavel; et al. Chimija gallija, indija i tallija. Novosibirsk: Nauka, 1977.
- JASKULA, Brian. Gallium. In: U.S. GEOLOGICAL SURVEY. Mineral Commodity Summaries [online]. 2012 [cit. 2012-07-25]. Avilable from: http://minerals.usgs.gov/
- JURSÍK, F. Anorganická chemie kovů. 1. vyd. Vysoká škola chemicko-technologická v Praze, Praha 2002. ISBN 80-7080-504-8.
- MELLOR, Joseph. Comprehensive Treatise on Inorganic and Theoretical Chemistry. Vol. 5. Londýn: Longmans, Green & Co., 1924.
- REMY, Heinrich. Anorganická chemie - I. díl. 2. české vydání, dotisk. Praha: SNTL 1971.
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