Arsenic
| Latin name | Arsenicum |
| English name | Arsenic |
| chemical symbol | As |
| atomic number | 33 |
| relative atomic mass | 74,92159 |
| period | 4 |
| group | V.A |
| classification | metalloids |
| discovery year | ≈ 1250 |
| melting point [°C] | 817 |
| boiling point [°C] | 613 sublimation |
| density [g cm-3] | 5,72 |
| density at melting point [g cm-3] | 5,22 |
| electronegativity [Pauling] | 2,18 |
| oxidation states | -III, III, V |
| electron configuration | [Ar]3d10 4s2 4p3 |
| atomic radius [pm] | 114 |
| covalent radius [pm] | 119 |
| specific heat [J g-1K-1] | 0,33 |
| heat of fusion [kJ mol-1] | 27,7 |
| thermal conductivity [W m-1 K-1] | 50 |
| el. conductivity [S m-1] | 3,3.106 |
| 1. ionizing potential [eV] | 9,8152 |
| 2. ionizing potential [eV] | 18,633 |
| 3. ionizing potential [eV] | 28,351 |
| Mohs hardness | 3,5 |
| Brinell hardness [MPa] | 1440 |
| Young's modulus [GPa] | 8 |
| state at normal conditions | solid |
Resources
- BARTHELMY, David. Mineral Species containing Arsenic. In: Mineralogy database [online]. 2010 [cit. 2012-09-01]. Available from: http://webmineral.com/
- BROOKS, William. Arsenic. In: U.S. GEOLOGICAL SURVEY. Mineral Commodity Summaries [online]. 2013 [cit. 2013-02-07]. Available from: http://minerals.usgs.gov/
- HUSTED, Robert; et al. Arsenic. In: LANS Los Alamos National Lab [online]. 2011 [cit. 2012-08-03]. Available from: http://periodic.lanl.gov/
- JURSÍK, František. Anorganická chemie nekovů. Praha: Vysoká škola chemicko-technologická, 2001. ISBN 80-7080-417-3.
- KLIKORKA, Jiří; et al. Obecná a anorganická chemie. 2. nezměněné vyd. Praha: SNTL, 1989.
- ŠAFÁŘOVÁ, M; ŘEHOŘ, M. Stopové prvky v uhelných a neuhelných sedimentech severočeské pánve a zeminách rekultivovaných lokalit. In: Chemické listy [online]. 2006 [cit. 2012-09-03]. Available from: http://www.chemicke-listy.cz/
- ŠRÁMEK, Vratislav. Chemie obecná a anorganická. 2. vyd. Olomouc: Nakladatelství Olomouc, 2005. ISBN 80-7182-099-7.
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