Bromine, 35Br |
| Bromine |
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| Pronunciation | (BROH-meen, -min) |
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| Appearance | gas/liquid: red-brown
solid: metallic luster |
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| Standard atomic weight Ar, std(Br) | [7001799010000000000♠79.901, 7001799070000000000♠79.907] conventional: 7001799040000000000♠79.904 |
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| Bromine in the periodic cairt |
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|
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| Atomic nummer (Z) | 35 |
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| Group | group 17 (halogens) |
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| Period | period 4 |
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| Block | p-block |
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| Element category | Reactive nonmetal |
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| Electron confeeguration | [Ar] 3d10 4s2 4p5 |
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| Electrons per shell | 2, 8, 18, 7 |
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| Pheesical properties |
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| Phase at STP | liquid |
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| Meltin pynt | 265.8 K (-7.2 °C, 19 °F) |
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| Bylin pynt | 332.0 K (58.8 °C, 137.8 °F) |
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| Density (near r.t.) | (Br2, liquid) 3.1028 g/cm3 |
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| Treeple pynt | 265.90 K, 5.8[1] kPa |
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| Creetical pynt | 588 K, 10.34[1] MPa |
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| Heat o fusion | (Br2) 10.571 kJ/mol |
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| Heat o vapourisation | (Br2) 29.96 kJ/mol |
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| Molar heat capacity | (Br2)
75.69 J/(mol·K) |
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Vapour pressur
| P (Pa)
|
1
|
10
|
100
|
1 k
|
10 k
|
100 k
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| at T (K)
|
185
|
201
|
220
|
244
|
276
|
332
|
|
| Atomic properties |
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| Oxidation states | −1, +1, +3, +4, +5, +7 strangly acidic |
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| Electronegativity | Pauling scale: 2.96 |
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| Atomic radius | empirical: 120 pm |
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| Covalent radius | 120±3 pm |
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| Van der Waals radius | 185 pm |
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 Colour lines in a spectral rangeSpectral lines o bromine |
| Ither properties |
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| Naitural occurrence | primordial |
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| Creestal structur | orthorhombic |
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| Speed o soond | (20°C) 206 m/s |
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| Thermal conductivity | 0.122 W/(m·K) |
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| Electrical resistivity | 7.8×1010 Ω·m (at 20 °C) |
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| Magnetic orderin | diamagnetic[2] |
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| CAS Nummer | 7726-95-6 |
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| History |
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| Diskivery | Antoine Jérôme Balard an Leopold Gmelin (1825) |
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| First isolation | Antoine Jérôme Balard an Leopold Gmelin (1825) |
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| Main isotopes o bromine |
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| | references |
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in
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calc from C
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diff
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report
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ref
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| C
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| —
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—
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| K
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265.8
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265.9
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-0.1
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delta
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| F
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19
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19.0
|
0
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|
| WD
|
String Module Error: Target string is empty ! 
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| input
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C: -7.2, K: 265.8, F: 19
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| comment
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| style="text-align:left"|
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in
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calc from C
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diff
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report
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ref
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| C
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58.8
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—
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—
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| K
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332.0
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331.9
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0.1
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delta
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| F
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137.8
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137.8
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0
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|
| WD
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String Module Error: Target string is empty !
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|
| input
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C: 58.8, K: 332.0, F: 137.8
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| comment
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References
Thir references will appear in the airticle, but this list appears anerly on this page.
- ↑ a b Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nt ed.). CRC Press. p. 4.121. ISBN 1439855110.
- ↑ Magnetic susceptibility of the elements and inorganic compounds, in Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.
