Revision as of 20:55, 16 December 2020 by imported>Monkbot
[[Category:Template:Pagetype with short description]]
Bromine, 35Br |
| Bromine |
|---|
| Pronunciation | (Template:Respell) |
|---|
| Appearance | reddish-brown |
|---|
| Standard atomic weight Ar, std(Br) | [[[:Template:Val]], Template:Val] conventional: Template:Val |
|---|
| Bromine in the periodic table |
|---|
|
|
| Atomic number (Z) | 35 |
|---|
| Group | group 17 (halogens) |
|---|
| Period | period 4 |
|---|
| Block | p-block |
|---|
| Electron configuration | [Ar] 3d10 4s2 4p5 |
|---|
| Electrons per shell | 2, 8, 18, 7 |
|---|
| Physical properties |
|---|
| Phase at STP | liquid |
|---|
| Melting point | (Br2) 265.8 K (−7.2 °C, 19 °F) |
|---|
| Boiling point | (Br2) 332.0 K (58.8 °C, 137.8 °F) |
|---|
| Density (near r.t.) | Br2, liquid: 3.1028 g/cm3 |
|---|
| Triple point | 265.90 K, 5.8 kPa[1] |
|---|
| Critical point | 588 K, 10.34 MPa[1] |
|---|
| Heat of fusion | (Br2) 10.571 kJ/mol |
|---|
| Heat of vaporization | (Br2) 29.96 kJ/mol |
|---|
| Molar heat capacity | (Br2) 75.69 J/(mol·K) |
|---|
Vapor pressure
| P (Pa)
|
1
|
10
|
100
|
1 k
|
10 k
|
100 k
|
| at T (K)
|
185
|
201
|
220
|
244
|
276
|
332
|
|
| Atomic properties |
|---|
| Oxidation states | −1, +1, +3, +4, +5, +7 (a strongly acidic oxide) |
|---|
| Electronegativity | Pauling scale: 2.96 |
|---|
| Ionization energies | - 1st: 1139.9 kJ/mol
- 2nd: 2103 kJ/mol
- 3rd: 3470 kJ/mol
-
|
|---|
| Atomic radius | empirical: 120 pm |
|---|
| Covalent radius | 120±3 pm |
|---|
| Van der Waals radius | 185 pm |
|---|
| Spectral lines of bromine |
| Other properties |
|---|
| Natural occurrence | primordial |
|---|
| Crystal structure | orthorhombic |
|---|
| Speed of sound | 206 m/s (at 20 °C) |
|---|
| Thermal conductivity | 0.122 W/(m·K) |
|---|
| Electrical resistivity | 7.8×1010 Ω·m (at 20 °C) |
|---|
| Magnetic ordering | diamagnetic[2] |
|---|
| Magnetic susceptibility | −56.4·10−6 cm3/mol[3] |
|---|
| CAS Number | 7726-95-6 |
|---|
| History |
|---|
| Discovery and first isolation | Antoine Jérôme Balard and Carl Jacob Löwig (1825) |
|---|
| Main isotopes of bromine |
|---|
|
|
Category: Bromine | references |
[[Category:Infobox templates|Template:Remove first word]]
References
These references will appear in the article, but this list appears only on this page.
Lua error: Internal error: The interpreter has terminated with signal "24".