Bromo

Bromine
35Br
Cl ↑ Br ↓ I Periodic table selenium ← bromine → krypton
Appearance
gas/liquid: red-brown solid: metallic luster
General properties
Name, simbolo, kaiphan	bromine, Br, 35
Pronunciation	Plantilya:IPAc-en Plantilya:Respell or Plantilya:IPAc-en Plantilya:Respell
Element category	halogen
Group, period, block	17, 4, p
Standard atomic weight	79.904(1)
Electron configuration	[Ar] 4s2 3d10 4p5 2, 8, 18, 7
History
Discovery	Antoine Jérôme Balard and Leopold Gmelin (1825)
First isolation	Antoine Jérôme Balard and Leopold Gmelin (1825)
Physical properties
Phase	likido
Density (near r.t.)	(Br2, liquid) 3.1028 g·cm−3
Melting point	265.8 K, -7.2 °C, 19 °F
Boiling point	332.0 K, 58.8 °C, 137.8 °F
Critical point	588 K, 10.34 MPa
Heat of fusion	(Br2) 10.571 kJ·mol−1
Heat of vaporization	(Br2) 29.96 kJ·mol−1
Molar heat capacity	(Br2) 75.69 J·mol−1·K−1
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	7, 5, 4, 3, 1, -1 (strongly acidic oxide)
Electronegativity	2.96 (Pauling scale)
Ionization energies	1st: 1139.9 kJ·mol−1
	2nd: 2103 kJ·mol−1
	3rd: 3470 kJ·mol−1
Atomic radius	120 pm
Covalent radius	120±3 pm
Van der Waals radius	185 pm
Miscellanea
Crystal structure	orthorhombic
Magnetic ordering	diamagnetic
Electrical resistivity	(20 °C) 7.8×1010Ω·m
Thermal conductivity	0.122 W·m−1·K−1
Speed of sound	(20°C) 206 m·s−1
CAS registry number	7726-95-6
Most stable isotopes
Main article: Isotopes of bromine
iso NA half-life DM DE (MeV) DP 79Br 50.69% 79Br is stable with 44 neutrons 81Br 49.31% 81Br is stable with 46 neutrons

Ang bromo (Iningles bromine) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Br ug kaiphan nga atomik 35. Ang bromo mao ang halogen.

Galeriya sa hulagway

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