Broom

35
Br
Groep
17
Periode
4
Blok
p
Protrone
Elektrone
Neutrone
35
35
45
Algemene Eienskappe
Atoom Nommer
35
Atoommassa
79,904
Massa Nommer
80
Kategorie
Halogene
Kleur
Rooi
Radioaktief
Nee
From the Greek word bromos, stench
Kristalstruktuur
Base Centered Orthorhombic
Geskiendenis
Carl Jacob Löwig discovered bromine in 1825, while still a chemistry student at Heidelberg University, Germany.

Antoine Balard distilled the bromine from a solution of seaweed ash saturated with chlorine in 1824.

He finally published his results in 1826, providing evidence that the substance he had discovered was a new element.
Elektrone per skil
2, 8, 18, 7
Elektronkonfigurasie
[Ar] 3d10 4s2 4p5
Br
Bromine is the only nonmetallic element that is liquid at ordinary temperatures
Fisiese Eienskappe
Fase
Vloeistof
Digtheid
3,122 g/cm3
Smeltpunt
265,95 K | -7,2 °C | 19,04 °F
Kookpunt
331,95 K | 58,8 °C | 137,84 °F
Heat of Fusion
5,8 kJ/mol
Heat of Vaporization
14,8 kJ/mol
Spesifieke Hitte Kapasiteit
0,474 J/g·K
Oorvloed in die aardkors
0,0003%
Oorvloed in die heelal
7×10-7%
Pure
Beeld Krediete: Images-of-elements
Pure liquid bromine
CAS Nommer
7726-95-6
PubChem CID Nommer
24408
Atomiese Eienskappe
Atoom radius
120 pm
Kovalente Radius
120 pm
Elektronegatiewiteit
2,96 (Pauling scale)
Ionisasie potensiaal
11,8138 eV
Atoom volume
23,5 cm3/mol
Termiese geleidingsvermoë
0,00122 W/cm·K
Oksidasiestate
-1, 1, 3, 4, 5, 7
Toepassings
Bromine is used in making fumigants, flameproofing agents, water purification compounds, dyes, medicines and sanitizers.

Potassium bromide is used as a source of bromide ions for the manufacture of silver bromide for photographic film.

Bromine is also used to reduce mercury pollution from coal-fired power plants.
Bromine is poisonous and causes skin burns
Isotope
Stabiele Isotope
79Br, 81Br
Onstabiele Isotope
67Br, 68Br, 69Br, 70Br, 71Br, 72Br, 73Br, 74Br, 75Br, 76Br, 77Br, 78Br, 80Br, 82Br, 83Br, 84Br, 85Br, 86Br, 87Br, 88Br, 89Br, 90Br, 91Br, 92Br, 93Br, 94Br, 95Br, 96Br, 97Br