ଛାଞ୍ଚ:Infobox Bromine

Bromine,  ₃₅Br

ସାଧାରଣ ଗୁଣ
ନାମ, ପ୍ରତୀକ	bromine, Br
Appearance	gas/liquid: red-brown solid: metallic luster
ଉଚ୍ଚାରଣ	/ˈbroʊmiːn/ BROH-meen or /ˈbroʊmn/ BROH-min
Bromine in the periodic table
Cl ↑ Br ↓ I selenium ← bromine → krypton
ପରମାଣୁ କ୍ରମାଙ୍କ (Z)	35
ଶ୍ରେଣୀ, ବ୍ଳକ	group 17 (halogens), p-block
ପର୍ଯ୍ୟାୟ	period 4
ମୌଳିକ ପ୍ରକାର	halogen
ମାନକ ପରମାଣବିକ ଓଜନ (±) (Ar)	79.904(1)
ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ	[Ar] 4s2 3d10 4p5
per shell	2, 8, 18, 7
ଭୌତିକ ଗୁଣ
ଅବସ୍ଥା	liquid
ଗଳନାଙ୍କ	265.8 K ​(-7.2 °C, ​19 °F)
ସ୍ଫୁଟନାଙ୍କ	332.0 K ​(58.8 °C, ​137.8 °F)
Density near r.t.	(Br2, liquid) 3.1028 g/cm3
Critical point	588 K, 10.34 MPa
Heat of fusion	(Br2) 10.571 kJ/mol
Heat of	(Br2) 29.96 kJ/mol
Molar heat capacity	(Br2) 75.69 J/(mol·K)
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	Pauling scale: 2.96
Atomic radius	empirical: 120 pm
Covalent radius	120±3 pm
Van der Waals radius	185 pm
Miscellanea
Crystal structure	​orthorhombic
Speed of sound	(20°C) 206 m/s
Thermal conductivity	0.122 W/(m·K)
Electrical resistivity	7.8×1010 Ω·m (at 20 °C)
Magnetic ordering	diamagnetic
CAS Number	7726-95-6
ଇତିହାସ
ଆବିଷ୍କାର	Antoine Jérôme Balard and Leopold Gmelin (1825)
First isolation	Antoine Jérôme Balard and Leopold Gmelin (1825)
Most stable 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

References

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