Bromine Element (Periodic Table)

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Bromine

Bromine (Br) is a chemical element of the periodic table, located in the group 17 and the period 4, and has the atomic number 35. It is a reddish-brown liquid, whose name comes from the Greek word “bromos”, which means stench. It is a reactive nonmetal and is the third lightest halogen, after the chlorine element.

group
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
period
1
 1
H
 2
He
2
 3
Li
 4
Be
 5
B
 6
C
 7
N
 8
O
 9
F
 10
Ne
3
 11
Na
 12
Mg
 13
Al
 14
Si
 15
P
 16
S
 17
Cl
 18
Ar
4
 19
K
 20
Ca
 21
Sc
 22
Ti
 23
V
 24
Cr
 25
Mn
 26
Fe
 27
Co
 28
Ni
 29
Cu
 30
Zn
 31
Ga
 32
Ge
 33
As
 34
Se
 35
Br
 36
Kr
5
 37
Rb
 38
Sr
 39
Y
 40
Zr
 41
Nb
 42
Mo
 43
Tc
 44
Ru
 45
Rh
 46
Pd
 47
Ag
 48
Cd
 49
In
 50
Sn
 51
Sb
 52
Te
 53
I
 54
Xe
6
 55
Cs
 56
Ba
 72
Hf
 73
Ta
 74
W
 75
Re
 76
Os
 77
Ir
 78
Pt
 79
Au
 80
Hg
 81
Tl
 82
Pb
 83
Bi
 84
Po
 85
At
 86
Rn
7
 87
Fr
 88
Ra
 104
Rf
 105
Db
 106
Sg
 107
Bh
 108
Hs
 109
Mt
 110
Ds
 111
Rg
 112
Cn
 113
Nh
 114
Fl
 115
Mc
 116
Lv
 117
Ts
 118
Og
57
La
 58
Ce
 59
Pr
 60
Nd
 61
Pm
 62
Sm
 63
Eu
 64
Gd
 65
Tb
 66
Dy
 67
Ho
 68
Er
 69
Tm
 70
Yb
 71
Lu
89
Ac
 90
Th
 91
Pa
 92
U
 93
Np
 94
Pu
 95
Am
 96
Cm
 97
Bk
 98
Cf
 99
Es
 100
Fm
 101
Md
 102
No
 103
Lr
– p block

FAQs on Bromine Element

Bromine
‣ What does bromine look like?

Appearance: reddish-brown
‣ Who discovered bromine? When was bromine discovered?

Discovery and first isolation: Antoine Jerome Balard and Carl Jacob Lowig (1825)
‣ Where is bromine located on the periodic table?

Bromine Periodic Table

Location: Bromine is found in the fourth row of the periodic table, next to the selenium element.
‣ What is the atomic number of bromine?

Atomic number (Z): 35
‣ What is bromine symbol?

Symbol: Br
‣ What is the atomic weight of bromine?

Standard atomic weight: [79.901, 79.907] conventional: 79.904
‣ What block is bromine in the periodic table?

Block: p-block
‣ What group does bromine belong to?

Group: 17 (halogens)
‣ Which period does bromine belong to?

Period: 4
‣ What is the atomic radius of bromine?

Atomic radius: empirical: 120 pm
‣ Bromine covalent radius: 120±3 pm
‣ Bromine Van der Waals radius: 185 pm
‣ What is bromine melting point?

Melting point: (Br2) 265.8 K (-7.2 °C, 19 °F)
‣ What’s the boiling point of bromine?

Boiling point: (Br2) 332.0 K (58.8 °C, 137.8 °F)
‣ Bromine critical point: 588 K, 10.34 MPa
‣ Bromine triple point: 265.90 K, 5.8 kPa
‣ How many electron shells does bromine have?

Electrons per shell: 2, 8, 18, 7
‣ What is the ground state electron configuration for bromine?

Electron configuration: [Ar] 3d10 4s2 4p5
‣ What is the ionization energy of bromine?

Ionization energies:
1st: 1139.9 kJ/mol
2nd: 2103 kJ/mol
3rd: 3470 kJ/mol
‣ What is the state of bromine at room temperature?

Phase (at r.t): liquid
‣ What is bromine density?

Density (near r.t): Br2, liquid: 3.1028 g/cm3
‣ Bromine magnetic ordering: diamagnetic
‣ Bromine natural occurrence: primordial
‣ What is the oxidation state of bromine?

Oxidation state: -1
‣ What is the electronegativity of bromine?

Electronegativity: Pauling scale: 2.96
‣ Bromine heat of fusion: (Br2) 10.571 kJ/mol
‣ Bromine heat of vaporization: (Br2) 29.96 kJ/mol
‣ Bromine molar heat capacity: (Br2) 75.69 J/(mol K)
‣ Bromine molar magnetic susceptibility: -56.4 × 10-6 cm3/mol
‣ Speed of sound in bromine: 206 m/s (at 20 °C)
‣ What is the crystal structure of bromine?

Crystal structure: orthorhombic
‣ Thermal conductivity of bromine: 0.122 W/(m.K)
‣ Bromine electrical resistivity: 7.8 × 1010 Ω.m (at 20 °C)
‣ Bromine CAS number: 7726-95-6

‣ Bromine vapor pressure

Vapor pressure
P (Pa)1101001 k10 k100 k
at T (K)185201220244276332

‣ How many isotopes does bromine have?

Main isotopes of bromine
IsotopeAbundanceHalf-life (t1/2)Decay modeProduct
79Br51 %stable
81Br49 %stable

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